CERTINA 230-401, Winding stem

CERTINA original winding stem, New without factory packaging.

• Thread: 0.90 mm.
• Fits cal: 230

CERTINA 230

• 15 jewels, manual wind, hour & minute.
• S: = 5.75 x 8.5'''  12.97 x 19.17 mm.
• H: = 3.50 mm.
• N: = 18.000 A/h.
• Mainspring: 1.30 x 7.5 - 0,085 - 230

Versions: (all marked 230)

• Without shock protection.
• Incabloc, screw balance, (picured).
• Incabloc, ring balance, movable stud carrier.