Skeleton Movement Tourbillon Watch for Men Dragon Ink Paiting 7011

Product Parameter: 

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: 43mm 
Frequency: 28800Hz/Hr 
Energy storage: 40 hours 
Travel time error: ±10 seconds/day 
Warranty: 1 years