Omega 440-1006, Winding stem

• OMEGA original stem in factory sealed packaging.
  

• Fits cal: 440 Backwinder
  

Data: Omega 580

• 17 jewels, manual wind.
• Size: 13.5 mm.
• H: = 3.2 mm.
• N: = 21.600 A/h.
  
• Power reserve: 36 h.

Versions:

• 440: Winding on back.
• 580: Normal winding.