AS 1203-724, Balance staff, incabloc

• AS original balance staff, not in factory packaging.

• Fits AS cal: 1203, 1204
• Fits FELSA cal: 390, 391, 395, 399, 750, 751, 752, 755, 756

Data: AS 1203

• 15 jewels, manual wind, sub second.
• Size: 12''' 26.6 mm.
• H: = 3.80 mm.
• N: = 18.000 A/h.
• Power reserve: 40 h.
• Mainspring: 1.75 x 9.5 - 0.115 - 340 mm.