Seiko 7431 Movement Details
Seiko calibre 7431 is an analogue quartz watch movement.
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Battery: | SR721SW / 362 (Silver oxide) |
Accuracy: | ±15 seconds/month |
Day / date? | No |
GMT / world time? | No |
Chronograph? | No |
Rate: | 32,768 Hz |
Number of jewels: | 2 |
Size / diameter: | 22.0mm |
Height: | 2.1mm |
Development division: | Daini (Kameido, Tokyo, Japan) |
Notes: | The same as cal. 7430 but with a seconds hand. Has a battery life indicator function. |
PDF guides: |
Technical guide
: 7430A, 7431A & 7439A
Parts list : 7431A |
Related movements: | 7430 7433 7439 |
Part Codes
Stem code: | 354077 (short), 354079 |
Screw codes: | 012170, 012469 (case screw), 012766, 012778 |