Seiko 4R57 Movement Details
Seiko calibre 4R57 is an automatic (with hand winding) watch movement. Production was in the 2020s.
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| Sub-brands: | Presage |
| Power reserve: | 41 hours |
| Accuracy: | +45/-35 seconds/day |
| Day / date? | Date only |
| GMT / world time? | No |
| Chronograph? | No |
| Hacking? | Yes |
| Rate: | 21,600 bph |
| Number of jewels: | 29 |
| Lift angle: | 53º |
| Size / diameter: | 29.36mm |
| Height: | 6.63mm |
| Notes: | Has a power reserve indicator. The date is shown in a sub-dial. |
| PDF guides: | Technical guide : 4R57A |
Part Codes
| Stem code: | 351200 (tap 10) |
| Balance wheel code: | 310185 |
| Mainspring code: | 201287 |
| Screw codes: | 012100, 012168, 012310, 012354, 012919 (ratchet wheel screw) |