Seiko 7K52A Parts Catalogue /Technical Manual Download Page 5

Cal. 7K52A

47

4000 695
Sensor circuit block

Lubricating of some parts is shown in “III. REMARKS ON DISASSEMBLING AND REASSEMBLING”.

         Please see the remarks on the following pages.

52

4216 691
Insulator for circuit
block

54

4457 813
Circuit block cover (B)

58

4000 696
Circuit block

PARTS CATALOGUE

43

Battery

44

4531 692
Circuit block guard

45

0022 230
Sensor clamp screw

46

4283 611
Sensor clamp

42

4225 692
Battery clamp

(with AC comment sheet)

41

0022 230
Battery clamp
screw

48

0022 230
Spacer for circuit
block screw

49

0439 612
Spacer for circuit block

50

4246 693
Buzzer lead terminal

51

4000 694
A/D circuit block

53

0012 354
Circuit block cover
(B) screw

55

0012 354
Circuit block cover (A)
screw

59

4270 690
Battery connection (-)

60

4246 691
Switch lead terminal
(A)

56

4457 812
Circuit block cover (A)

57

0396 610
Friction spring for
second counting

5

Summary of Contents for 7K52A

Page 1: ...meas urement serves as a guideline when the user is making a dive In addition you must fully understand the following This watch is for use in recreational scuba diving no decompression diving and is...

Page 2: ...providing warrantable accuracy Within displayed value x 3 0 5 m Movement size Outside diameter Casing diameter Height 31 0 mm 30 0 mm 5 9 mm Electronic circuit reset switch Train wheel setting device...

Page 3: ...on at the 8 o clock side 14 Hour hand 13 Minute hand 12 Diving time hand 16 Depth hand 17 1 10 m depth hand 18 Small second hand 19 Alarm minute hand 20 Alarm hour hand 15 Maximum depth hand 22 0491 6...

Page 4: ...4 Date dial guard screw 25 4283 612 Depth hand wheel clamp 28 0808 606 Date dial guard 29 1018 610 Setting lever spring for maximum depth hand 32 0012 354 Anti magnetic shield plate screw 34 0810 606...

Page 5: ...block guard 45 0022 230 Sensor clamp screw 46 4283 611 Sensor clamp 42 4225 692 Battery clamp with AC comment sheet 41 0022 230 Battery clamp screw 48 0022 230 Spacer for circuit block screw 49 0439 6...

Page 6: ...idge 63 0950 590 Intermediate alarm wheel 64 0270 610 Center wheel for alarm 67 0241 583 Fourth wheel and pinion 68 0240 610 Second wheel 70 0231 580 Third wheel and pinion 71 0261 612 Minute wheel 72...

Page 7: ...5 4002 690 Coil block for diving time hand 99 4450 690 Switch lever A 98 4450 701 Switch lever B 97 4450 702 Switch lever C 96 4239 693 Rotor stator for 1 10 m depth hand 95 4239 693 Rotor stator for...

Page 8: ...supplied as part of the crown Check the case number and refer to SEIKO Casing Parts Catalogue to choose a corresponding crown The type of date dial is determined based on the design of cases Check th...

Page 9: ...NG THE BATTERY After the battery is replaced with a new one or after the battery is re installed following the repairing procedures be sure to short circuit the AC terminal and the battery connection...

Page 10: ...th hands when the depth hand returns to indicate the average depth the maximum depth hand stays where it was advanced by the depth hand Switch lead terminal A Auto switch terminal 15 Maximum depth han...

Page 11: ...and wheel so that the post of the set ting lever for maximum depth hand is positioned in the slit of the depth wheel A portion Post of the setting lever for maximum depth hand Depth hand wheel B porti...

Page 12: ...xi mum depth hand from the maximum depth hand wheel except when it needs to be replaced with a new one Second intermediate wheel for calendar correction First intermediate wheel for calendar correctio...

Page 13: ...e to use a screwdriver that fits the slot of the pin head Never apply undue force to the pins in turning them using a screwdriver TECHNICAL GUIDE Rodico A portion Circuit block cover B Circuit block c...

Page 14: ...rm 83 4146 612 Step rotor for 1 10 m depth hand 64 0270 610 Center wheel for alarm Before setting the train wheel bridge be sure to check that each wheel is set at the right position and the lower piv...

Page 15: ...hen pull out the setting lever A portion in the illustration below while pressing it 99 Switch lever A Setting position and lubricating Yoke Setting lever Setting lever Switch lever A 15 A portion 79...

Page 16: ...oltage supplied from a battery For the circuit block alone less than 1 4 A with voltage supplied from a battery Before measuring the current consumption be sure to reset the circuit with the tester co...

Page 17: ...tting the alarm hour and minute hands to the current time The alarm hour hand moves correspondingly with the alarm minute hand Simultaneous press of buttons at 2 oclock and 10 oclock sides Resetting t...

Page 18: ...istance test Increasing the pressure More than 15 minutes Pressure value 1 00 kg cm2 3 00 kg cm2 Depth display of Cal 7K52A 8 5 10 5 m 27 5 30 5 m TECHNICAL GUIDE 2 2 18 Pressure Elapsed time Keeping...

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