Heuer 11-8290, Friction spring

• New Heuer genuine part from a N.O.S. movement, not in factory packaging.

• Fits Heuer cal: 11, 12, 14, 15, (base caliber: Buren 1281).

• Fits Valjoux cal: 7740, 7741

Versions: Heuer

• 11: N: = 19800.
• 12: N: = 21600.
• 14: as cal: 12 with 24h GMT.
• 15: as cal: 12, sub second instead of 12 h counter.