Seiko 7T42 Movement Details
Seiko calibre 7T42 is an analogue quartz watch movement. Production started around 1988.
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| Sub-brands: | SQ 100, Sports 150 |
| Battery: | SR927W / 395 (Silver oxide) |
| Accuracy: | ±15 seconds/month |
| Day / date? | Date only |
| GMT / world time? | No |
| Chronograph? | Yes |
| Alarm? | Yes |
| Hacking? | Yes |
| Rate: | 32,768 Hz |
| Number of jewels: | 0 |
| Size / diameter: | 27.0mm |
| Height: | 3.1mm |
| PDF guides: |
Technical guide
: 7T32B & 7T42B
Battery replacement guide |
| Related movements: | 5T52 7T32 7T52 7T59 7T62 7T72 7T82 7T92 |
Part Codes
| Date wheel code: | 878527 (black on white) |
| Screw codes: | 022230, 022459 |