Omega 3303-6407, Screw for setting lever

• OMEGA original part in very good used condition.
  

• OMEGA part number: 722.3303.6407
  

• Fits cal: 3303 A/B, 3313 A/B

• 37 jewels, automatic wind, chronograph, 60 s, 30 min, 12 h counter, date.
• S: = 12''' 27.00 mm.
• H: = 6.85 mm.
• N: = co-axial escapement: 28.800 A/h.
• Power reserve: 52 h.

Versions:

• 3301A: lever escapement.
• 3301B: lever escapement, modified plate, balance cock, balance and balance insettings.
• 3303A: lever escapement.
• 3303B: lever escapement, modified plate, balance cock, balance and balance insettings.
• 3313A: co-axial escapement.
• 3313B: co-axial escapement, modifications as above and new intermediate escape wheel, new co-axial wheel and new pallet fork.