Product information: Color: FW-6530-R1 silver case white surface black tape, FW-6530-R3 blue shell blue surface white tape, FW-6530-R2 black shell black surface black tape Dial diameter: 44mm Thickness: 12mm Crown type: Spiral crown Case back type: transparent bottom Mirror material: coated glass Buckle style: pin buckle Watch-buttom material: Stainless steel Strap material: Silicone