Omega 660-1106, Winding stem

• OMEGA original part, not in factory packaging.

• Thread: 0.90 mm.
  

• Fits cal: 450, 455, 660, 661

Data: Omega 660 (15 RA PC AM 17 P).

• 17 jewels, automatic wind.
• Size: 15.40 mm.
• H: = 4.25 mm.
• N: = 19.800 A/h.
• Power reserve: 40 h.

Versions:

• 660: 17 jewels.
• 661: 24 jewels.
• 662: 17 jewels, 21.600 A/h. Redesign.
• 663: 24 jewels, 21.600 A/h. Redesign.