1

Cal. 7T32BCal. 7T42B

Outside diameter(x 1.0)

[SPECIFICATIONS]

7T32B 7T42BCal. No.ItemMovement

The illustrations refer to Cal. 7T32B.ø27.6mm24.0mm between 3 o’clock and 9 o’clock sides

ø27.0mm24.0mm between 3 o’clock and 9 o’clock sides

Casing diameter

3.1mm (3.2mm including the battery portion)Height

Movement size

mralAhctawpotSemit niaMnoitacidni emiT Timer (for Cal. 7T42B)Hour, minuteand smallsecond hands

Minute and1/5-secondhands

Small hour andminute hands

Minute and second hands(Stopwatch 1/5-secondand minute hands)

Driving system Step motor, 4 pieces

• Electronic circuit reset switch• Train wheel setting device• Battery life indicator (Small second hand moves at two-second intervals.)• Date calendar• Instant setting device for date calendar• Stopwatch function (Up to 30 minutes in 1/5 seconds)• Accumulated elapsed time measurement• Split time measurement

• Timer function (Up to 60 minutes in minutes)• Alarm function (12-hour indication system)• Alarm test system

Additional mechanism

Monthly rate at normal temperature range: less than 15 secondsLoss/gain

NilRegulation system

Measuring gate by quartz tester

SEIKO SR927W, Maxell SR927W, SONY SR927W, EVEREADY 399Battery life is approximately 2 years.Voltage: 1.55V

Battery

0 jewelJewels

PARTS CATALOGUE / TECHNICAL GUIDE

Use 10-second gate.

2

Cal. 7T32B

1 → 79

79 → 1

7

8

6 5

4589 801

3

18

Parts Catalogue

9

10

2

1

4

11

12

13

14

15

16

17

19

Case back

Case back gasket

Case ring (Cal. 7T32B)

Piezoelectric element

Button spring clip

Button C

Button B

Winding stem for alarm

Button springButton A Winding stem

Stopwatch second

hand/Timer minute hand

Minute hand

Hour hand

Small second hand

Stopwatch minute hand/Timerhand second

Alarm minute hand

Alarm hour hand

Dial

Holding ring for dial

Silicone Oil 500,000 c.s.

Please see the remarks on the following pages.

SEIKO Watch Oil S-6Extremely small

Moebius A Normal quantity

Lubricating: Types of oil Oil quantity

Disassembling procedures Figs.:

Reassembling procedures Figs.:

3

Cal. 7T32B

Please see the remarks on the following pages.

Battery clamp screw　0022 230

Parts Catalogue

22 0878 527

21 0808 580

20 0027 973

27 0271 580 (1) 0271 588 (2)

26 0271 583

25 0802 580

24 0737 580

23 0962 580

28 0022 230

29 4225 714

31 0022 459

33 0396 580

34 4000 710

30 Battery

32 4457 726

37 Pin for train wheel bridge 0027 974

38 0125 590

39 Second-counting wheel 0888 580 (1) 0888 582 (2)

49 Intermediate minute- counting wheel 0950 590

Circuit block coverscrew

　0022 459

51 Intermediate alarm wheel 0950 590

50 Minute-counting wheel　0902 580

52 enter minute wheel for alarm　0270 580

53 Minute wheel for alarm 0261 582

54 Setting wheel for alarm 0281 582

48 Setting wheel　0281 580

47 Minute wheel　0261 580

46 Second intermediate wheel

0885 591

45 First intermediate wheel

0885 590

44 Fifth wheel and pinion 　0701 580

43 Third wheel and pinion　 0231 580

42 Fourth wheel and pinion 0241 583

41 　Small second wheel 0240 580

40 Spacer for center wheeland

35 4246 700

36 Battery connection (–) 4270 710

Pin for date dial guard

Date dial guard

Date dial

Intermediate wheelfor calendar correction

Date corrector settingwheel

Date driving wheel

Hour wheel for alarm

Hour wheel

Battery clamp screw

Battery clamp

Circuit block cover screw

Circuit block cover

Friction spring forsecond-counting

Circuit block

Buzzer lead terminal

Train wheel bridge

pinion 4283 581

for second-counting

for second-counting

4

Cal. 7T32B部品カタログ

55 Step rotor　4146 710

56 Chronograph rotor for second 　4146 710

57 Alarm rotor 4146 710

58 Chronograph rotor for minute 　4146 710

59 Coil block　4002 700

60 Coil block for chronograph second 4002 700

61 Coil block for alarm 4002 711

62 Coil block for chronograph minute 4002 711

63 Switch lever A 4450 710

64 Setting lever for alarm 0383 591

65 Setting lever 0383 592

66 Winding stem for alarm 0351 580

67 Clutch wheel for alarm 0282 582

68 Yoke 0384 580

69 Winding stem 0351 580

70 Clutch wheel 0282 580

71 Train wheel setting lever 0391 591

72 Rotor stator 4239 710

73 Rotor stator for chronograph second 4239 711

74 Rotor stator for alarm 4239 712

75 Rotor stator for chronograph minute 4239 713

76 Center wheel and pinion 0221 580 (1) 0221 583 (2)

77 Switch lever C 4450 702

78 Switch lever B 4450 701

79 Main plate 0100 590

Please see the remarks on the following pages.