2Jewellery Men's Fashion Watches, double-sided hollow design, black technology carbon fiber case, strong hard shell machinery, barrel-type sports case, sapphire mirror, environmental luminous, folding buckle rubber strap, light and wear-resistant, strong waterproof.
Movement: 7H50 automatic
Movement model: 1906
Drive: single drive
Power reserve: 80 hours
Vibration frequency: 28800 (times/hour)
Winding method: automatic winding
Case diameter: 49.5*43mm
Strap width: 20-25.5mm
Case Material: Carbon Fiber
Strap Material: Rubber
Waterproof depth: 30M life waterproof
Mirror: artificial sapphire
Buckle: Double butterfly concealed buckle
Crown: straight in