Longines 490-728, Balance staff

• LONGINES original part, not in factory packaging.

• 1 pcs.

• Fits Longines cal: 490

Technical data: Longines 490 (Election 885).

• 17 jewels, manual wind, sub second.
• Size: 13''' 28.9 mm.
• H: = 3.20 mm.
• N: = 21.600 A/h.
• Power reserve: 46 h.
• Mainspring: 1.30 - 11.5 x 0.14 mm.