Seiko 3M21 Movement Details
Seiko caliber 3M21 is a kinetic (formerly AGS) watch movement.
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| Sub-brands: | Dolce |
| Battery: | 3027.3MZ (replaces 3029.011) / (Rechargeable capacitor) |
| Accuracy: | ±15 seconds/month |
| Day / date? | No |
| GMT / world time? | No |
| Chronograph? | No |
| Notes: | Used in ladies watches. The same as cal. 3M22 but without a date display. |
| PDF guides: | Technical supplement : 3M21A & 3M22A |
| Related movements: | 3M22 |