complex craftsmanship, Tiangong series, double-sided hollow design, flying tourbillon, the pinnacle of mechanical watch manufacturing technology, Multifunctional Skeleton Tourbillon, exquisite craftsmanship, mechanical arts, a model of elegance, 316L stainless steel case, hollow carving, sapphire mirror, powerful luminous function Pointers, folding buckle, first-layer cowhide strap, full of texture.
Movement: Flying Tourbillon
Movement Model: CAL.3H31
Drive: single-spring drive
Power Reserve: 42 (hours)
Vibration Frequency: 21600 (times/hour)
Winding Method: manual winding
Jewel Bearing: 19
Case Diameter: 42 mm
Case Thickness: 13 mm
Strap Width: 22 mm
Case Material: 316 stainless steel
Strap Material: top layer cow leather strap
Waterproof Depth: 30 m life waterproof
Mirror: artificial sapphire
Caseback: Sapphire glass
Crown: straight in
