Sản phẩm nội bộ
Movement dimensions: 29.10 x 31.25 mm
- Thickness: 6.05 mm
- Number of gems: 39
- Balance: four-arm beryllium bronze balance with 4 adjustable weights, instantaneous inertia 7.5 mg•cm2, lift angle 50º
- Swing frequency: 28,800 times/hour (4 Hz)
- Balance spring: AK3
- Seismic protection: INCABLOC 908.22.211.100 (transparent)