Seiko Caliber 6F22
Seiko Caliber 6F22

Seiko Caliber 6F22

Quartz
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ManufacturerSeiko
Caliber Number6F22, 6F22A
Movement TypeQuartz, 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 Count3
FunctionsCentral 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 ManufactureMade 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:

Seagull Caliber St19

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