Blue nail automatic skeleton mechanical watch $ 16.83 Dial diameter: 41mm Thickness: 15mm Crown type: Spiral crown Table bottom type: through bottom Mirror material; coated glass Buckle style: single folding buckle Buckle material: stainless steel Strap material: stainless steel Dial shape: round Case material: metal Case diameter (without adjustment): 41mm Dial thickness: 15mm Table bandwidth: 20mm Strap inner circumference: 22.5cm