product information：
Case material:High-quality metal case
Strap material: High quality silicone strap
Back cover material: Stainless steel hollow see-through bottom cover
Mirror material: Hardened mineral glass
Dial: High-end dial
Buckle: Pin buckle
Movement: Automatic tourbillon mechanical movement
Function: Week/month/calendar/luminous
Waterproof: 30M life waterproof
Watch diameter: About 40MM strap diameter: 22MM
Full length of the watch: 240MM Weight of the watch: 105G