Omega 1020-1580BL, Date indicator
- OMEGA original part in factory sealed packaging.
- Black print on white background, for date window at "3"
- Fits cal: 1020, 1021, 1022
Versions:
- 1010: automatic, 17 jewels, date.
- 1011: automatic, 23 jewels, chronometer, date.
- 1012: automatic, 23 jewels, date.
- 1020: automatic, 17 jewels, day, date.
- 1021: automatic, 23 jewels, chronometer, day, date.
- 1022: automatic, 23 jewels, day, date.
- 1030: manual, 17 jewels, date.
- 1035: manual, 17 jewels.