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Mechanical watches

Precision tolerances

3

OMEGA

 mechanical watches with a certified chronometer 

movement

OMEGA

 watches bearing the chronometer inscription (in accordance 

with the certificate issued by your authorised 

OMEGA

 retailer) are 

high-precision timepieces that have passed the precision tests of the 

Official Swiss Chronometer Testing Institute (Contrôle Officiel Suisse 

des Chronomètres, COSC).
This neutral and independent body individually tests each movement 

for 360 consecutive hours, during which it is placed in the five common 

wrist positions and exposed to three different temperatures.

To earn the title of chronometer, the mechanical movement’s average 

daily variation in rate must be between -4/+6 seconds per day, or a 

precision of 99.99%, the highest precision attainable by a mechanical 

movement.

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9, 10

1, 2

7, 8

3, 4

5, 6

13

23°C

38°C

12

23°C

23°C

14, 15

23°C

23°C

11

23°C

8°C

23°C

Temperature

Temperature

Days

Days

Position

Position

Quartz watches

Precision tolerances

3

The precision of a mechanical movement depends on the individual 

habits of the wearer and can therefore vary. A qualified 

OMEGA

 

watchmaker can adjust the precision of a watch to within the 

OMEGA

 

tolerances, which are from -1 to +6 seconds per day.

Other 

OMEGA

 mechanical watches 

Watches  without  chronometer  certification  (COSC)  have  average  

precision tolerances of between -1 and +11 seconds per day.
The precision of a mechanical movement depends on the individual 

habits of the wearer and can therefore vary. A qualified 

OMEGA

 

watchmaker can adjust the precision of a watch to within the 

OMEGA

 

tolerances. 

Quartz watches

All 

OMEGA

 quartz movements are produced in accordance with 

OMEGA

’s highly renowned procedures and quality standards. Ambient 

temperature may affect the precision of quartz movements, which can 

lead to variations of between -0.5 and +0.7 seconds per day.

Quartz watches with thermocompensation 

This movement is fitted with an electronic module that compensates 

for the effects of temperature on the movement’s precision. These 

watches are accurate to /- 0.055 seconds per day.
The precision of a mechanical watch cannot be compared to that of a 

quartz watch, given that the two are based on different technologies.

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01-OMEGA_V14-I_EN.indd   34-35

16/05/12   14:01:20

Summary of Contents for 1376

Page 1: ...E 14...

Page 2: ...rs 2403 8401 8421 A A A 2300 Omega Number of calibers 2300 2005 Omega Number of calibers 1376 1456 2005 2006 2007 8602 xxxx xxxx xxxx 8612 xxxx xxxx xxxx xxxx xxxx Omega MONDAY Number of calibers 8602...

Page 3: ...nter Minutenz hler Licznik minut Minutov s ta Po tadlo min t Percsz ml l Minutiloendur Hour counter Stundenz hler Licznik godzin Hodinov s ta Po tadlo hod n rasz ml l Tunniloendur Day counter Datumsan...

Page 4: ...403 8401 8421 23 Manual winding chronograph Calibres 1861 1863 1866 3200 3201 3203 3604 24 Self winding chronograph with or without date Calibres 3202 3220 3330 26 Self winding chronograph with date C...

Page 5: ...er states and in any countries with corresponding legislation 1 Introduction What must I do to ensure that my OMEGA watch provides me with excellent service for many years Magnetic fields avoid placin...

Page 6: ...atch This manufacturer s warranty does not cover the life of the battery normal wear and tear and ageing for example scratched crystal alteration of the colour and or material of non metallic straps a...

Page 7: ...and forty eight 48 months for watches with a co axial escapement and SI14 balance spring as well as for watches with the caliber 8500 or 8501 from the date of purchase under the terms and conditions...

Page 8: ...tained in the booklet provided with this watch and on the OMEGA website www omegawatches com does NOT apply to you and is replaced by this Australian New Zealand Warranty referred to below as the Warr...

Page 9: ...nty Introduction Please be aware that Goods presented for repair may be replaced by refurbished goods of the same type rather than being repaired Refurbished parts may be used to repair the goods Any...

Page 10: ...arranty HOW TO MAKE A CLAIM UNDER THIS WARRANTY To make a claim under this Warranty we recommend that you wrap your OMEGA watch carefully so as to avoid any damage and send it by registered mail or dr...

Page 11: ...tery must be removed and replaced by an authorised OMEGA service agent as soon as possible The hours minutes seconds and chronograph functions are driven by 4 motors using conventional quartz technolo...

Page 12: ...nsures that the watch is water resistant Occasional winding if the watch has not been worn for 60 hours or more wind it up with the crown in position 1 2 Time zone and correcting the date pull the cro...

Page 13: ...o not quit setting mode if the displays day and date are not properly centred in their windows calibreS 1120 2500 2507 2520 2610 8520 8521 fig I calibre 2627 fig V calibre 2300 fig X Manual self windi...

Page 14: ...f winding watch 2 Operating instructions 2627 Omega calibreS 2005 2006 2007 fig IV calibres 2403 8401 8421 fig VIII The crown has 2 positions 1 Normal position wearing position when the crown is posit...

Page 15: ...h functions Pusher A start stop start stop etc Timing to 1 6 of a second for up to 12 hours for the calibres 1861 1863 1866 3604 Timing to 1 8 of a second up to 30 minutes for the calibre 3200 3203 Ti...

Page 16: ...a neously calibre 3202 calibre 3220 fig XIII Self winding chronograph with date Operating instructions 2 calibreS 1151 3606 fig XI calibre 3304 fig XX The crown has 3 positions Watch functions 1 Norma...

Page 17: ...es 3301 3303 and 3313 Self winding chronograph with date Operating instructions 2 Self winding chronograph with date Operating instructions 2 The crown has 3 positions 1 Normal position wearing positi...

Page 18: ...sition 1 Chronograph functions Pusher A start stop start stop etc Timing to 1 8 of a second for up to 12 hours Self winding split seconds chronograph Operating instructions 2 Pusher B reset after a st...

Page 19: ...structions 2 2 Setting the time zone and correcting the date pull the crown out to position 2 Turn the crown forwards or backwards and the hour hand will move forwards or backwards by 1 hour intervals...

Page 20: ...depends on the individual habits of the wearer and can therefore vary A qualified OMEGA watchmaker can adjust the precision of a watch to within the OMEGA tolerances which are from 1 to 6 seconds per...

Page 21: ...ed with a valve specially developed by OMEGA 30 4 0 35 3 0 25 60 45 5 0 55 15 5 1 0 30 10 20 60 20 40 12 6 9 3 PROFESSIONAL CHRONOMETER 300m 1000ft 8 SWISS MADE fig 1 q Helium escape valve Specific se...

Page 22: ...mple calculating the number of heart beats per minute Start the chronograph count the heart beats and stop it at the beat correspon ding to the scale graduations of your chronograph here to the 30th b...

Page 23: ...2 put the watch on your wrist and close the clasp by pushing on it with your thumb until you hear a click fig 2 fig 3 Using the rotating bezel fig 4 keep the pusher A pressed down to turn the bezel U...

Page 24: ...e primary battery cell Russian customs Not water resistant d q j b V O xxxx l P U c a i S Z k m h o r t g N R Water resistant to a relative pressure of 3 bar 30 metres 100 feet Water resistant to a re...

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