| Brand | Credor |
| Manufacturer | Seiko |
| Caliber Number | 7771, 7771A |
| Movement Type | Quartz, battery-powered |
| Jewel Count | 6 |
| Frequency | 32,768 Hz |
| Battery Cell | SR916SW / 373 |
| Claimed Batt Life | 3 years |
| Accuracy Rating | +/- 15 seconds/month |
| Trimmer/Regulator? | Yes |
| Hand Count | 3 |
| Functions | Central hours; central minutes; central seconds |
| Hacking Seconds? | Yes |
| Country of Manufacture | Made in Japan |
| Known Models | (Add your watch to the comments below…) |
The Credor caliber 7771 is a vintage 3-hander quartz movement from circa 1980s. It has been discontinued and is no longer produced.
This caliber is part of the 77 family of Credor movements and is based on the calibre 7770. The main difference is that the 7770 is a 2-hander without seconds and the 7771 has a central seconds hand.
Credor is a luxury line of watches that was launched by Seiko in 1974.
Additional technical details:
- Movement current consumption: 1.1 uA
- Circuit block current: 0.6 uA
- Coil resistance: 3.0-3.8
Additional Resources:
network of watch sites
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