Omega 550-1110, Setting lever spring, generic
- OMEGA generic part.
- Fits cal: 550, 551, 552, 560, 561, 562, 600, 601, 602, 610, 611
Versions without date:
- 550: 17 jewels.
- 551: 24 jewels, chronometer.
- 552: 24 jewels.
Versions with date:
- 560: 17 jewels.
- 561: 24 jewels, chronometer.
- 562: 24 jewels.
- 563: 24 jewels, quick set date.
- 564: 24 jewels, quick set date, chronometer.
- 565: 24 jewels, quick set date.
- 750: 17 jewels, day, date.
- 751: 24 jewels, day, date, chronometer.
- 752: 24 jewels, day, date.
Versions with manual wind:
- 600: 17 jewels, swan neck regulator.
- 601: 17 jewels, exenter regulator.
- 602: 17 jewels, chronometer.
- 610: 17 jewels, swan neck regulator, date.
- 611: 17 jewels, exenter regulator, date.
- 613: 17 jewels, quickset date.