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