Men's Tourbillon Luminous Waterproof Hollow Out Mechanical Watch

Product information:
Color: 816 gold shell white surface steel strip, 816 silver case white surface steel strip, 816 silver case black surface steel strip, 816 black shell black surface steel strip, 816 gold shell white surface belt
Thickness: 16MM
Dial diameter: 43mm
Waterproof performance: 30m
Movement type: Machinery
Crown type: Spiral crown
Case back type: transparent bottom
Mirror material: high hardness coating watch cover
Buckle style: butterfly double snap-fastener
Watch-buttom material: Stainless steel
Strap material: Stainless steel