Movement referenceLong production run
Seiko caliber 1F20
Two-hand ladies quartz (20-second hand step), 12.5 x 10.0 x 1.8 mm, SR416SW. JDM release May 1988 per Seiko caliber table; listed in JDM catalogs 1990-1998 (e.g. Tisse). End year after 1998 is not documented and is widened.
- Type
- quartz
- Jewels
- 0
- Produced
- 1988–2002 (approx.)
- Family
- 1F analog quartz (ladies)
Have a 1F20? Find the year it was made.
In the catalogue
0 modelsNo models with the 1F20 are in the catalogued sets yet — the extracted catalogues are mostly 1968–1977 Japanese-domestic editions. More catalogues are being read.
Available at Tiny Hour Tales
With the 1F20, in the shop now
The shop’s own listing names the 1F20 for these watches.
