Omega 684
Technical data Omega cal: 684 (17.5 RA T1 SC PC CAL 24p)
- 24 jewels, automatic wind, date.
- Size: 17.50 mm.
- H: = 5.05 mm.
- N: = 21.600 A/h.
- Power reserve: 40 h.
Versions: 19.800 A/h.
- 620: manual wind, 1962
- 630: manual wind, sweep second, 1962
- 670: 17 jewels, automatic wind, 1963
- 671: 24 jewels, automatic wind, 1963
- 672: 24 jewels, automatic wind, chronometer with or without sweep second, 1968
- 680: 17 jewels, automatic wind, date, 1963
- 681: 24 jewels, automatic wind, date, 1963
- 682: 24 jewels, automatic wind, date, chronometer with or without sweep second, 1968
Versions: 21.600 A/h.
- 625: 17 jewels, manual wind, 1974
- 635: 17 jewels, manual wind, sweep second, 1974
- 683: 17 jewels, automatic wind, date, 1971
- 684: 24 jewels, automatic wind, date, 1971
- 685: 24 jewels, automatic wind, date, chronometer, 1971