Seiko 9442 Movement Details
Seiko caliber 9442 is an analog quartz watch movement. Production started around 1980.
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| Sub-brands: | Lassale |
| Battery: | SR1120SW / 381 (Silver oxide) |
| Accuracy: | ±20 seconds/year |
| Day / date? | Date only |
| GMT / world time? | No |
| Chronograph? | No |
| Rate: | 32,768 Hz |
| Number of jewels: | 8 |
| Size / diameter: | 25.6mm |
| Height: | 2.8mm |
| Stem code: | 354640 |
| Date wheel code: | 801522 (black on white), 801523 (white on black), 801524 (black on gold) |
| Screw codes: | 022411, 022424, 022754, 022903 (battery clamp screw) |
| Development division: | Suwa (Nagano) |
| Notes: | Twin quartz crystals for greater accuracy. The same as cal. 9441 but with date display (no day). |
| PDF guides: |
Parts list
: 9442A
Technical guide : 9442A & 9443A |
| Related movements: | 9441 9443 |