Manufacturer | Seiko |
Caliber Number | 6F22, 6F22A |
Movement Type | Quartz, battery-powered |
Production Span | circa 1980s~1990 |
Diameter | 19mm x 22mm |
Casing Diameter | 24mm |
Height | 3.3mm |
Jewel Count | 1 |
Frequency | 32,768 Hz |
Battery Cell | SR920SW (371) |
Battery Life | ~3 years |
Regulator? | None |
Driving System | Step motor |
Hand Count | 3 |
Functions | Central hours; central minutes; central seconds; moonphase indicator at 6:00; date at 12:00 or 3:00 |
Hacking Seconds? | Yes |
Quickset Date? | Yes |
Country of Manufacture | Made in Japan |
Known Models | (Add your watch to the comments below…) |
The Seiko caliber 6F22 (6F22A) is a vintage quartz moonphase movement with a date.
Seiko 6F22 VS 6F29:
There is a similar caliber 6F29 with the main difference being that the 6F22 is a 3-hander (hours/mins/secs) and the 6F29 is a 2-hander (hours/mins).
Additional Resources:
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