double-wound mechanical automatic tourbillon, artificial sapphire mirror, double-wound linkage system, 72-hour long-function reserve, high-grade split combined shell, Italian calf leather.
Brand: HaofaTOURBILLON
Movement: Automatic mechanical tourbillon
Model: 3HD0
Vibration frequency: 28,800 times/hour)
Drive: Double clockwork drive.
Power storage: 72 (hours)
Winding mode: automatic winding
Gem bearing: 36
Diameter of case: 41 mm
Material: 316 fine steel
The thickness of the case is 13.5 mm
Material: cowhide
Width of strap: 21 mm
Waterproof depth: 30 m waterproof for domestic use.
Weight: 84 g
Mirror bottom cover: artificial sapphire glass cover