Haofa 1931 Double Spring

Product Specification

Movement: CAL.3HD3 Automatic Tourbillon Vibration Frequency: 28800 (times/hour)| Drive: Double Winding Drive
Winding Method: Self Winding
Case Material: 316L Stainless Steel
Strap Material: Italian Calfskin
Water Resistance: 30M
Case Diameter: 41mm
Case Thickness: 13.5mm
Strap Width: 21mm
Movement Diameter: 33mm
Inner Length: 33mm
Gem Bearings: 35