Caliber lookup
Movement reference
3870
Rare time-only '38RW' high-torque movement used in Seiko's first quartz railway pocket watch (model QYE010, 3870-0010), produced ~1976 in very small numbers, never catalogued. Rated ~10 sec/month. Window kept wide (1971-1982) to safely contain the ~1976 production without false contradiction.
- Type
- quartz
- Jewels
- 7
- Produced
- 1971–1982 ~
- Family
- Seiko 38 (38xx analog quartz)
Notable references
3870-0010
In the catalogue
0 modelsNo models with the 3870 are in the catalogued sets yet — our extracted catalogues are mostly 1970s Japanese-domestic editions. More catalogues are being digitised.