| Manufacturer | Miyota (Citizen) |
| Caliber Number | 1S13 |
| Type | Quartz |
| Similar Caliber | 1S02 |
| Diameter | 11.50”’ (25.6mm) |
| Thickness | 2.71mm |
| Battery Cell Number | 364 (SR621SW) |
| Battery Life | Up to 3 years |
| Quartz Type | Tuning fork type quartz crystal |
| Stem | 065-505 (tap 10) |
| Hand Sizes | 1.20/.70/.17 |
| Jewels | 0 |
| Hacking | Yes |
| Functions | Hours, minutes, seconds, date |
| Country of Manufacture | Japan |
| Known Models | TW Steel Slim Line |
The Miyota caliber 1S13 is a quartz movement with 0 jewels.
1S13 vs 1S02
There is also a similar caliber 1S02. The difference is that the caliber 1S13 has a date at 3:00 and the 1S02 has a day/date at 3:00.
Accuracy Rating
Miyota’s official documentation claims the accuracy of the caliber 1S13 is +/-20 seconds/month.
Replacement Prices
At the time of this post the replacement price is in the range of $9.50 – $10.50. Buy the replacement here.
Watches with this movement
Additional Resources:
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