Product information: Color: Black Ribbon black surface and white shell, gray with black surface and white shell, green with green surface and white shell, Blue Ribbon blue surface and white shell Thickness: 14mm Waterproof performance: 30m Movement type: Machinery Mirror material: mineral reinforced glass mirror Buckle style: butterfly double snap-fastener Watch-buttom material: Stainless steel Strap material: textile Dial shape: round Watchcase material: Stainless steel