Patek Philippe 7''70-401, Winding stem

• PATEK PHILIPPE original winding stem, not in factory packaging.

• Thread: 0.90 mm.

• Fits cal: 7'' 70

Data Patek Philippe cal: 7'' 70

• 18 jewels, manual wind, hour and minute display.
• S: = 16.20 x 12.00 mm.
• H: = 3.10 mm.
• N: = 21.000 A/h.
• Power reserve: