Movement referenceLong production run
Seiko caliber 1F21
Three-hand ladies quartz with battery end-of-life indicator, 12.5 x 10.0 x 2.2 mm, SR421SW. JDM release Oct 1987 per Seiko caliber table; used in Exceline, Lukia and Tisse and listed in JDM catalogs 1987-1998. Later dealer-dated examples exist; end year is widened.
- Type
- quartz
- Jewels
- 2
- Produced
- 1987–2006 (approx.)
- Family
- 1F analog quartz (ladies)
Have a 1F21? Find the year it was made.
In the catalogue
0 modelsNo models with the 1F21 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 1F21, in the shop now
The shop’s own listing names the 1F21 for these watches.
