Mechanical Tourbillon Waterproof Men Skeleton Watch 7027

Movement: Original tourbillon skeleton movement 

Waterproof: 50M 

Watch mirror: synthetic sapphire 

Strap material: first layer cowhide 

Dial features: double-sided hollow design 

Case material: stainless steel 

Dial thickness: 12mm 

Dial diameter: 42.5mm 

Frequency: 28800Hz/Hr 

Energy storage: 40 hours 

Travel time error: ±10 seconds/day 

Warranty : 1 years