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Citizen bn4026, Instruction Manual

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Citizen bn4026 Instruction Manual Download Page 30

28

Calibrating altitude indication

About altitude indication

This watch measures atmospheric pressure with a specialized sensor and calculates 

altitude by applying the standard atmosphere model (set by ICAO, International 

Civil Aviation Organization) used for altitude measurement of civil aircrafts.

The standard atmosphere model sets a theoretical atmosphere and how pressure, 

temperature, density and viscosity vary accompanying with change of altitude in it.

Therefore, expected altitude may significantly differ from actual one when the 

weather changes drastically such as in climbing.

You can calibrate altitude indication by entering altitude already known.

• You can calibrate the value in the range of ±1 000 m of currently measured 

altitude.

Summary of Contents for bn4026

Page 1: ...INSTRUCTION MANUAL ...

Page 2: ...ENGLISH FRANÇAIS ESPAÑOL DEUTSCH ITALIANO PORTUGUÊS 中文 繁体字 中文 簡体字 ...

Page 3: ...y of information such as electronic setting guides answers to frequently asked questions Eco Drive recharging information and more To check the movement number A case number 4 alphanumeric characters and 6 or more alphanumeric characters is engraved on the case back Figure on the right The first 4 characters of the case number represent the movement number of the watch In the example on the right ...

Page 4: ...aning of the following symbols Safety advisories are categorized and depicted in this manual as follows DANGER Highly likely to cause death or serious injury WARNING Can cause serious injury or death CAUTION Can or will cause minor or moderate injury or damage Important instructions are categorized and depicted in this manual as follows Warning caution symbol followed by instructions that should b...

Page 5: ...situation judgments involving risks are required When rapid changes in altitude occur such as when skydiving or hang gliding When wearing the watch under water such as in skin diving When the situation requires special treatments CAUTION Altitude may be measured improperly in the following cases When air temperature changes sharply When atmospheric pressure largely changes accompanying with change...

Page 6: ...ctional indication is required for navigational or other activities with serious risks CAUTION Compass direction may be measured improperly in the following cases When the watch is not kept level When the surrounding magnetic field is disturbed When air temperature changes sharply When surrounded by reinforced concrete wall or things made of iron When electric cables electric trains or electric pr...

Page 7: ...age 16 For optimal performance ensure your watch is fully charged prior to use Refer to pages 12 to 15 for charging procedures and times This watch has a rechargeable cell which is charged by exposing the dial to light Expose the dial to direct sunlight regularly to charge the watch For details of charging see pages 12 to 17 ...

Page 8: ...nearest authorized Citizen service center Protective stickers Be sure to remove any protective stickers that may be on your watch case back band clasp etc Otherwise perspiration or moisture may enter the gaps between the protective stickers and the parts which may result in a skin rash and or corrosion of the metal parts How to use a specially designed crown button Some models are equipped with a ...

Page 9: ...ase With gentle pressure towards the case rotate the crown clockwise to secure it to the case Be sure to tighten firmly Screw down push button Rotate the locking screw counterclockwise and loosen until it stops Rotate the locking screw clockwise and tighten firmly Recessed buttons Press the button with a non marring narrow tipped object such as a wooden toothpick Metal objects may cause marring or...

Page 10: ...e built in magnetism sensor Altitude measurement Indicates altitude by measuring atmospheric pressure with a sensor Eco Drive is an original technology of Citizen CONTENTS Parts identification when measuring altitude 10 Parts identification when using the compass 11 Charging your watch 12 Checking the current power reserve 16 Measuring altitude 18 Using the compass 24 ...

Page 11: ...on 28 Calibrating compass indication 32 Checking and correcting the reference position 44 Using the scale 48 Troubleshooting 50 Eco Drive solar powered watch handling precautions 58 Water resistance 62 Precautionary items and usage limitations 65 Information 72 Specifications 76 ...

Page 12: ...utton Scale rotation crown 1 000 m hand 100 m hand 2 5 m hand Atmospheric pressure sensor Scale Date indicator Second hand Hour hand Minute hand m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 10 x1000m W E m 10 2 0 3 0 4 0 50 6 0 7 0 8 0 90 0 50 90 4 0 8 0 3 0 7 0 2 0 6 0 10 10 9 0 5 0 S 5 0 m W E 6 0 4 0 7 0 3 0 8 0 2 0 9 0 10 2 0 8 0 3 0 7 0 4 0 6 0 Crown ...

Page 13: ...your watch m 0 200 800 400 600 x1000m 0 1 2 3 4 5 6 7 8 9 10 W E m 10 2 0 3 0 4 0 50 6 0 7 0 8 0 90 0 50 90 4 0 8 0 3 0 7 0 2 0 6 0 10 10 9 0 5 0 S 5 0 m W E 6 0 4 0 7 0 3 0 8 0 2 0 9 0 10 2 0 8 0 3 0 7 0 4 0 6 0 Crown Second hand Hour hand Minute hand Power reserve indication hand Scale rotation crown Scale Compass hand Lower left button Upper left button Date indicator ...

Page 14: ...to bright light such as by a window For optimal performance be sure to Expose it to direct sunlight for 5 or 6 hours at least once a month Avoid leaving the watch in dark places for long periods of time Caution Do not charge the watch at high temperature about 140 F 60 C or higher If the watch is obscured from light by long sleeves frequently supplemental charging may be needed to ensure continual...

Page 15: ...n pages 14 and 15 When the watch is sufficiently charged the second hand will move normally If you do not charge the watch for 4 days or longer after the insufficient charge warning movement has begun the watch will be depleted of all power and stop Caution When in the insufficient charge warning state the current time and date are indicated However measurement functions of the watch will not be a...

Page 16: ... Environment Illuminance lx Charging time approx To work for one day To start working normally when the cell is discharged To become fully charged when the cell is discharged Outdoors sunny 100 000 3 minutes 2 hours 35 hours Outdoors cloudy 10 000 12 minutes 3 5 hours 90 hours 8 inches 20 cm away from a fluorescent lamp 30W 3 000 40 minutes 8 hours 290 hours Interior lighting 500 4 hours 50 hours ...

Page 17: ...h it is recommended to expose the dial to direct sunlight Optimal charging is achieved by exposing the dial to direct sunlight outdoors for a short time each day After charged fully the watch runs without additional charging for about 11 months ...

Page 18: ...erve indication Power reserve indication hand on the left sub dial Power reserve is not indicated during altitude measurement page 18 or altitude calibration page 28 0 1 2 3 4 5 6 7 8 9 x1000m Power reserve indication hand Power reserve level scale ...

Page 19: ...serve is sufficient for all features and functions Power reserve is sufficient for all operations at this level Power reserve is getting low Power reserve is not sufficient for normal operation OK for normal use Charge immediately You cannot use measurement functions while the power reserve level is in 0 However you can see the current time Frequent use of measurement functions makes the duration ...

Page 20: ... the lower left button Altitude is indicated It may take a moment to indicate altitude Wait until movement of the hands stop If you press and release the upper left button while indicating altitude the 100 m hand temporarily indicates compass direction page 24 Press and release the upper left button to return to altitude indication 2 After finishing altitude measurement press and release the lower...

Page 21: ... 100 m and 2 5 m hands 1 000 m hand indication Indication range 1 000 m to 10 000 m The hand points 0 when measured altitude is lower than 1 000 m On the example in the left the measured altitude is indicated as 3 000 m level 1 2 3 4 5 6 m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 x1000m 10 2 0 3 0 8 0 7 0 W 4 0 7 0 3 0 8 0 2 0 9 W E m 10 2 0 3 0 4 0 50 6 0 7 0 8 0 90 0 50 90 4 0 8 0 3 0 7 0 2 0 6 0 1...

Page 22: ... x1 m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 x1000m m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 x1000m 10 10 2 0 3 0 4 0 9 8 0 7 0 W 0 4 0 7 0 3 0 8 0 2 0 9 0 W E m 10 2 0 3 0 4 0 50 6 0 7 0 8 0 90 0 50 90 4 0 8 0 3 0 7 0 2 0 6 0 10 10 9 0 5 0 S 5 0 m W E 6 0 4 0 7 0 3 0 8 0 2 0 9 0 10 2 0 8 0 3 0 7 0 4 0 6 0 W E m 10 2 0 3 0 4 0 50 6 0 7 0 8 0 90 0 50 90 4 0 8 0 3 0 7 0 2 0 6 0 10 10 9 0 5 0 S 5 0 m W...

Page 23: ...g the mark on the scale to the position that the 2 5 m hand points makes it easier to determine altitude difference at the next altitude measurement m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 x1000m m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 x1000m m 0 200 800 400 600 10 10 0 W E m 10 2 0 3 0 4 0 50 6 0 7 0 8 0 90 0 50 90 4 0 8 0 3 0 7 0 2 0 6 0 10 10 9 0 5 0 S 5 0 m W E 6 0 4 0 7 0 3 0 8 0 2 0 9 0 10 2...

Page 24: ...9 x1000m 10 10 W E m 10 2 0 3 0 4 0 50 6 0 7 0 8 0 90 0 50 90 4 0 8 0 3 0 7 0 2 0 6 0 10 10 9 0 5 0 S 5 0 m W E 6 0 4 0 7 0 3 0 8 0 2 0 9 0 10 2 0 8 0 3 0 7 0 4 0 6 0 W E m 10 2 0 3 0 4 0 50 6 0 7 0 8 0 90 0 50 90 4 0 8 0 3 0 7 0 2 0 6 0 10 10 9 0 5 0 S 5 0 m W E 6 0 4 0 7 0 3 0 8 0 2 0 9 0 10 2 0 8 0 3 0 7 0 4 0 6 0 Measured altitude 6 790 0 m Measured altitude 12 5 m ...

Page 25: ...altitude cannot be indicated the 1 000 m hand points to 3 o clock position and stops 1 000 m hand pointing m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 x1000m W E m 10 2 0 3 0 4 0 50 6 0 7 0 8 0 90 0 50 90 4 0 8 0 3 0 7 0 2 0 6 0 10 10 9 0 5 0 S 5 0 m W E 6 0 4 0 7 0 3 0 8 0 2 0 9 0 10 2 0 8 0 3 0 7 0 4 0 6 0 0 1 2 3 4 5 6 7 8 9 x1000m 10 ...

Page 26: ...quired Confirm the power reserve is in level 2 or higher before measurement 1 Press and release the upper left button while keeping the watch s dial level Compass function starts It may take a moment to indicate the compass direction Wait until movement of the hands stop Keep the watch as level and still as possible until compass direction finishes ...

Page 27: ...or office appliances Magnets It is recommended to calibrate page 32 frequently for better compass direction 2 After finishing measurement press and release the upper left button to turn off the function Compass indication ends in 30 seconds without pressing the button How to read the compass indication The compass hand points north m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 x1000m W E m 10 20 3 0 4 0...

Page 28: ...the crown to set the time Take care the time set is AM or PM Date indicator starts to change to the next as the setting passes 10PM Rotating the crown counterclockwise does not turn back date indicator 3 Push the crown in to position in accordance with a reliable time source to finish the procedure ...

Page 29: ...ber Do not set the date during the period below as the date indicator is changing Otherwise the date indicator may change improperly Period of time From 10PM to 0AM 12 00AM 1 Pull the crown out to position 2 Rotate the crown clockwise to set the date 3 Push the crown in to position to finish the procedure ...

Page 30: ...asurement of civil aircrafts The standard atmosphere model sets a theoretical atmosphere and how pressure temperature density and viscosity vary accompanying with change of altitude in it Therefore expected altitude may significantly differ from actual one when the weather changes drastically such as in climbing You can calibrate altitude indication by entering altitude already known You can calib...

Page 31: ...il movement of the hands stop 2 Press and hold the lower left button for 3 seconds or more The 1 000 m hand points and calibration of altitude indication becomes available Calibrating altitude indication You can correct altitude measured by the watch when you know the actual height from map sign or other sources for future measurement Continued on the next page ...

Page 32: ...e or Choose this when the actual altitude is higher than the measured one Choose this when the actual altitude is lower than the measured one Each time you press and release the button choice of and changes alternately Repeat steps 3 and 4 to control the altitude value after calibration ...

Page 33: ...on Press and release the upper left button and lower left button at the same time to reset the calibration value 5 Press and hold the lower left button for 3 seconds or more The corrected altitude is set as the current one and the hands return to measured altitude indication The corrected altitude is set as the current one and the hands return to measured altitude indication in 1 minute without an...

Page 34: ...generally the north which a compass points to magnetic north is different from that on a map true north You can determine the true north through the compass function by calibration and adjustment of the watch You can use 2 methods to calibrate the compass of this watch 2 point correction page 34 and declination correction page 40 Take care not to try to find compass direction around things generat...

Page 35: ...ch s status according to the surrounding environment Use it when temperature drastically changed or the watch itself may be magnetized 2 point correction is more effective if you do it before using the compass First point of correction Second point of correction Turn the watch by 180º W E W E ...

Page 36: ...it level Take enough care of surrounding conditions before starting correction Confirm you are not near an item with strong magnetism electric equipment magnets etc before starting correction 1 Press and release the upper left button Compass function starts It may take a moment to indicate compass direction Wait until movement of the hands stop ...

Page 37: ...180º to point the 9 o clock position Continued on the next page m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 x1000m W E m 10 2 0 3 0 4 0 50 6 0 7 0 8 0 90 0 50 90 4 0 8 0 3 0 7 0 2 0 6 0 10 10 9 0 5 0 S 5 0 m W E 6 0 4 0 7 0 3 0 8 0 2 0 9 0 10 2 0 8 0 3 0 7 0 4 0 6 0 m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 x1000m W E m 10 2 0 3 0 4 0 50 6 0 7 0 8 0 90 0 50 90 4 0 8 0 3 0 7 0 2 0 6 0 10 10 9 0 5 0 S 5 0...

Page 38: ...36 Calibrating compass indication 4 Turn the watch by 180º W E ...

Page 39: ...tion try again from step 3 Press and hold the upper left button for 3 seconds or more to cancel the correction When canceled no correction is executed and the previous correction result remains effective Pressing and releasing the upper left button and lower left button at the same time before finishing step 5 reset the values of 2 point correction and declination correction and the watch returns ...

Page 40: ... Earth as an astronomical body the magnetic north and true north as indicated on a map are different The difference is called declination Declination varies by location W E North pointed by a compass magnetic north North on a map true north Calibrating compass indication ...

Page 41: ...d on a map by setting the declination value of the location where you wants to find compass direction on the watch previously On this watch declination of 0 to 59 east and west can be set by 1 You can use the results of geomagnetism survey published by governmental or other organizations Calibrating compass indication ...

Page 42: ...ment of the hands stop 2 Press and hold the upper left button for 3 seconds or more The compass hand points the 3 o clock position 3 Press and hold the lower left button for 3 seconds or more The compass hand points the direction of declination east or west and the 2 5 m hand shows the degree of declination by pointing a second tick mark Calibrating compass indication ...

Page 43: ... the same time before finishing step 5 resets the values of 2 point correction and declination correction and the watch returns to compass indication 200 800 400 600 W E 6 0 7 0 50 4 0 3 0 2 0 10 9 0 5 0 S 5 0 m E 6 0 4 0 9 0 10 2 0 8 0 3 0 7 0 4 0 6 0 m 0 200 800 400 600 W E m 90 0 3 0 2 0 10 10 9 0 5 0 S 5 0 m E 6 0 4 0 9 0 10 2 0 8 0 3 0 7 0 4 0 6 0 200 800 400 600 W E 6 0 7 0 50 4 0 3 0 2 0 5 ...

Page 44: ... lower left button for 3 seconds or more Declination correction completes and compass function starts It may take a moment to indicate compass direction Wait until movement of the hands stop 7 Press and release the upper left button to finish the procedure ...

Page 45: ...ion is a method to detect earth magnetism surely and declination correction is a method to correct the declination of earth magnetism itself Appropriate implementation of the both methods makes the compass function of the watch more accurate Calibrating compass indication ...

Page 46: ... altitude and compass direction Position of the 1 000 m hand 6 00 Position of the 100 m hand compass hand 12 00 Position of the 2 5 m hand 12 00 The hour minute and second hands do not have the reference position Correct reference positions m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 x1000m W E m 10 2 0 3 0 4 0 50 6 0 7 0 8 0 90 0 50 90 4 0 8 0 3 0 7 0 2 0 6 0 10 10 9 0 5 0 S 5 0 m W E 6 0 4 0 7 0 3 0...

Page 47: ...he watch if the power reserve is lower than 2 2 Pull the crown out to position The hands move to their reference position 3 Check the reference positions Check the reference positions of the hands by referring to the illustration of the previous page If any reference position is incorrect correct it following step 3 and after on page 46 4 Push the crown in to position to finish the procedure Check...

Page 48: ...on and check the power reserve indication Charge the watch if the power reserve is lower than 2 2 Pull the crown out to position The hands move to their reference position 3 Press and hold the lower left button for 2 seconds or more The reference position of the 100 m hand compass hand becomes adjustable The 100 m hand compass hand and the 2 5 m hand move left when other hand is adjusted Checking ...

Page 49: ... and release the lower left button to change the hand to be corrected Each time you press and release the lower left button the target hand moves slightly to indicate it is adjustable The target hand changes in the following order 100 m hand compass hand 2 5 m hand 1 000 m hand back to the beginning 6 Repeat steps 4 and 5 to correct the reference positions of all the hands 7 Push the crown in to p...

Page 50: ...tude difference by setting the mark on the scale to the current position of the 2 5 m hand To move the scale turn the scale rotation crown The scale shows altitude difference of 97 5 m to 97 5 m range by 2 5 m Scale rotation crown mark on the scale Altitude difference W E 8 x1000m W E 10 7 0 5 0 S 5 0 E 6 0 4 0 7 0 30 2 0 8 0 3 0 7 0 ...

Page 51: ...than the north by setting the mark on the scale to the current position of the compass hand To move the scale turn the scale rotation crown North N mark on the scale Scale rotation crown Set the mark on the scale to the 12 o clock position after using the scale W E E S W ...

Page 52: ...the sensor Try again in a place with normal magnetism If you cannot solve your problem with the remedy consult the nearest authorized Citizen service center Press either button to return to time indication 24 m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 x1000m W E m 1 0 2 0 30 4 0 50 6 0 7 0 80 90 0 50 90 4 0 80 30 70 20 6 0 10 10 9 0 5 0 S 5 0 m W E 6 0 4 0 7 0 3 0 8 0 2 0 9 0 10 2 0 8 0 3 0 7 0 4 0 6...

Page 53: ...easurement system has occurred Consult the nearest authorized Citizen service center Press either button to return to time indication Continued on the next page m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 x1000m W E m 1 0 2 0 30 4 0 50 6 0 7 0 80 90 0 50 90 4 0 80 30 70 20 6 0 10 10 9 0 5 0 S 5 0 m W E 6 0 4 0 7 0 3 0 8 0 2 0 9 0 10 2 0 8 0 3 0 7 0 4 0 6 0 ...

Page 54: ...y Execute 2 point correction from the beginning again Press either button to return to time indication The watch returns to time indication in 30 seconds without any operation 34 m 0 200 800 400 600 0 1 2 3 4 5 6 7 8 9 x1000m W E m 1 0 2 0 30 4 0 50 6 0 7 0 80 90 0 50 90 4 0 80 30 70 20 6 0 10 10 9 0 5 0 S 5 0 m W E 6 0 4 0 7 0 3 0 8 0 2 0 9 0 10 2 0 8 0 3 0 7 0 4 0 6 0 ...

Page 55: ...rections Stop altitude measurement or compass function 18 24 Altitude indication is incorrect Check and correct the reference position 44 Execute altitude calibration 28 Compass indication is incorrect Check and correct the reference position 44 Execute compass calibration 32 Continued on the next page ...

Page 56: ...e every two seconds Charge the watch 12 The second hand does not move Push the crown in to position It is required to charge in direct sunlight for about 1 hour 12 Cannot check the power reserve Push the crown in to position Stop altitude measurement 18 Stop altitude calibration 28 Stop compass calibration 32 ...

Page 57: ...Troubleshooting 55 Symptom Remedies Page Calendar is incorrect Date indicator is incorrect Adjust the calendar 27 ...

Page 58: ...djustment mode Refer to step 3 and after on page 46 2 Adjust the time and calendar after correcting the reference position You can reset the watch to the initial status All Reset When you reset the watch the following values return to the initial Calibration value of altitude measurement Correction value of 2 point correction Correction value of declination correction ...

Page 59: ...ull the crown out to position The 1 000 m hand 100 m hand compass hand and 2 5 m hand move to their current reference positions Do not execute any operation until all the hands stop 3 Press and hold the upper left button and lower left button at the same time for 4 seconds or more As you release the buttons the hands move slightly to indicate that reset completed ...

Page 60: ...timal performance your watch should remain fully charged Long sleeves may inhibit light transmission to your watch This may result in your watch loosing charge In these cases supplemental charging may be necessary When you take off the watch place it in a bright location to ensure optimal performance ...

Page 61: ... which generates a large amount of heat such as an incandescent lamp or halogen lamp When charging under an incandescent lamp be sure to leave 20 inches 50 cm or more between the lamp and the watch to avoid exposing the watch to excessive heat Charging the watch in a location where the temperature may become extremely high such as on the dashboard of a vehicle Eco Drive solar powered watch handlin...

Page 62: ...per operation and condition check WARNING Handling of Rechargeable Cell The rechargeable cell should never be removed from the watch If for any reason it becomes necessary to remove the rechargeable cell from the watch keep out of the reach of children to prevent accidental swallowing If the rechargeable cell is accidentally swallowed consult a doctor immediately Do not dispose of the rechargeable...

Page 63: ...signed so that it will not operate when another type of battery is installed if a conventional watch battery or other type of battery is installed in the watch and the watch is recharged there is the risk of overcharging which may cause the battery to rupture This can cause damage to the watch and injury to the wearer When replacing the rechargeable cell always make sure to use the designated rech...

Page 64: ...ay use water resistant watch W R 5 bar Water resistant to 5 atmospheres W R 10 20 bar Water resistant to 10 or 20 atmospheres Refer to the watch dial and or the case back for the indication of the water resistance of your watch The following chart provides examples of use for reference to ensure that your watch is used properly The unit 1 bar is roughly equal to 1 atmosphere WATER RESIST ANT bar m...

Page 65: ...ter washing face rain etc Swimming and general washing work Skin diving marine sports Scuba diving using an air tank Operate the crown or button when the watch is wet NO NO NO NO NO OK NO NO NO NO OK OK NO NO NO OK OK OK NO NO Water resistance ...

Page 66: ...eres means the watch is water resistant for occasional accidental splashing Upgraded water resistance for daily use to 5 atmospheres means that the watch may be worn while swimming but is not to worn while skin diving Upgraded water resistance for daily use to 10 20 atmospheres means that the watch may be worn while skin diving but not while scuba or saturated diving using helium gas Water resista...

Page 67: ...n strenuous exercise or work to avoid injury to yourself and others Do not wear your watch while in a sauna or other location where your watch may become excessively hot since there is the risk of burns Be careful when putting on and taking off your watch since there is a risk of damaging your fingernails depending on the manner in which the band is fastened Take off your watch before going to bed...

Page 68: ...er or customer support center for inspection and or repair Even if your watch has a high level of water resistance please be careful of the following If your watch is immersed in sea water rinse thoroughly with fresh water and wipe with a dry cloth Do not pour water from a tap directly onto your watch Take off your watch before taking a bath If seawater enters the watch place the watch in a box or...

Page 69: ...uding cosmetics Discoloration and premature aging may be occurred Ultraviolet light such as direct sunlight may cause discoloration or deformation It is recommended to take off the watch if it gets wet even if the watch itself is water resistant Do not wear the band too tightly Try to leave enough space between the band and your skin to allow adequate ventilation The rubber urethane band may be st...

Page 70: ... The watch may stop or the function of the watch may be impaired in extremely high or low temperature Do not use the watch in places where the temperature is outside the operating temperature range as stated in the specifications Magnetism Analog quartz watches are powered by a step motor that uses a magnet Subjecting the watch to strong magnetism from the outside can cause the motor to operate im...

Page 71: ... benzene or other solvents or products containing these solvents including gasoline nail polish remover cresol bathroom cleaners and adhesives water repellent etc are allowed to come into contact with the watch they may discolor dissolve or crack the materials Be careful when handling these chemicals Contact with mercury such as that used in thermometers may also cause discoloration of the band an...

Page 72: ...clean the bracelet and case of your watch to remove accumulated dirt and foreign matter In rare circumstances accumulated dirt foreign matter may cause irritation with the skin If you notice this discontinue wearing the watch and consult your physician Be sure to periodically clean foreign matter and accumulated materials from the metal band synthetic rubber strap polyurethane and or metal case us...

Page 73: ...location avoiding locations subject to excessively high or low temperatures and high humidity When Luminous Paint is used for your watch The paint on the dial and hands helps you with reading the time in a dark place The luminous paint stores light daylight or artificial light and glows in a dark place It is free from any radioactive substance or any other material harmful to a human body or envir...

Page 74: ...ude calibration was executed x 2 15 m The accuracy is guaranteed when temperature is constant after altitude calibration The assured accuracy is that of altitude difference from the altitude calibration point not accuracy of measured altitude to actual one Example Error range at 700 m height when altitude was calibrated at a point of 500 m height 700 500 x 2 15 19 Thus the assured accuracy is 19 m...

Page 75: ...accuracy in various altitude and error range when altitude is calibrated at 0 m height for reference Height m Assured accuracy m Error range m 100 17 117 to 83 0 15 15 to 15 100 17 83 to 117 1 000 35 965 to 1035 5 000 115 4 885 to 5 115 10 000 215 9 785 to 10 215 Information 73 ...

Page 76: ... temperature is constant after 2 point correction About the regions where the compass function may be hard to use In the patterned regions on the next page the compass accuracy of the watch may not be maintained due to the characteristics of the geomagnetic field When using the compass function of the watch check the region Information 74 ...

Page 77: ...Information Patterned regions 75 ...

Page 78: ... C Operating temperature range 4 F 20 C to 140 F 60 C Display functions Time Hours minutes seconds Calendar Date Power reserve 4 levels Maximum run time from full charge After charged fully the watch runs without additional charging Approximately 11 months Power reserve upon insufficient charge warning function Approximately 4 days Battery Rechargeable cell lithium button cell 1 pc 76 ...

Page 79: ... Power reserve indication in four levels Overcharging prevention function Insufficient charge warning function two second interval movement Altitude indication function Altitude calibration function Compass indication function Compass calibration function Reference position check and adjustment function for altitude compass indication hands 77 ...

Page 80: ......

Page 81: ...Model No BN4 Cal J280 CTZ B8173 ...

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