Lemania 4500-401, Winding stem

• LEMANIA original stem from an old assortment, not in factory packaging.
• Thread: 0.90 mm.

• Fits cal: 4500, 4550, 4650, 4651

Data Lemania cal: 4500

• 15 jewels, manual wind, sub second.
• Size: 8.75'''
• H: = 4.0 mm.
• N: = 18.000 A/h.
• Power reserve: 40 h.

Versions:

• 4500: 8.75''' sub second (base caliber)
• 4550: 8.75''' sweep second.
• 4650: 10.5''' automatic.
• 4651: 10.5''' modified auto mechanism.