Seiko 7C46 Movement Details
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| Sub-brands: | SQ, Marinemaster, Prospex |
| Battery: | SR43SW / 301 (Silver oxide) |
| Accuracy: | ±15 seconds/month |
| Day / date? | Day + date |
| GMT / world time? | No |
| Chronograph? | No |
| Hacking? | Yes |
| Rate: | 32,768 Hz |
| Number of jewels: | 7 |
| Size / diameter: | 27.0mm |
| Height: | 3.7mm |
| Development division: | Suwa (Nagano Prefecture, Japan) |
| Notes: | Used in diving watches, in particular "tuna" watches. Uses a two-part stem. |
| PDF guides: | Technical guide : 7C43A & 7C46A |
| Related movements: | 7C43 7N36 7N85 V736 |
Part Codes
| Stem code: | 372925 (movement side), 373617 (crown side) |
| Date wheel code: | 801679 (black on white) |
| Screw codes: | 022257, 022493, 022648 |
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