Seiko 2501 Movement Details
Seiko calibre 2501 is an automatic watch movement.
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| Sub-brands: | Seikomatic Lady |
| Day / date? | No |
| GMT / world time? | No |
| Chronograph? | No |
| Rate: | 19,800 bph |
| Number of jewels: | 17 |
| Lift angle: | 49º |
| Size / diameter: | 17.2mm |
| Height: | 5.35mm |
| Development division: | Daini (Kameido, Tokyo, Japan) |
| Notes: | Used in ladies watches. The same as cal. 2505 but without date display. |
| PDF guides: | Technical guide : 2501A |
| Related movements: | 2505 2517 2559 |
Part Codes
| Stem code: | 351251, 372250 (movement side), 373250 (crown side) |
| Balance wheel code: | 310250 |
| Mainspring code: | 401030 |
| Screw codes: | 012118, 012120 (dial screw), 012121 (stud screw), 012204, 012241, 012251, 012252, 012407 (case screw), 012501, 012642, 012711 (screw for oscillating weight), 012718, 012744 |