Seiko 5Y66 Movement Details
Seiko caliber 5Y66 is an analog quartz watch movement.
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| Battery: | SR920SW / 371 (Silver oxide) |
| Accuracy: | ±20 seconds/month |
| Day / date? | Day + date |
| GMT / world time? | No |
| Chronograph? | No |
| Hacking? | Yes |
| Rate: | 32,768 Hz |
| Number of jewels: | 0 |
| Size / diameter: | 23.3mm (21.5mm x 21.5mm) |
| Height: | 3.81mm |
| Notes: | Has a retrograde day display. The same as cal. 5Y67 but with the retrograde day indicator at the 9:30 position. |
| PDF guides: | Technical guide : 5Y66A & 5Y67A |
| Related movements: | 5Y67 |
Part Codes
| Stem code: | 351177 (tap 10) |
| Screw codes: | 022230, 022247 |