British Army, Navy, and Air Force Broad Arrow specifications Marv Model NATO strap, black Movement: Japanese VH31 sweep second movement (seconds hand like a mechanical watch) Case material: 316L stainless steel Bezel: Mirror-polished finish Glass: Double-domed sapphire crystal Dial color: Vintage matte white Luminous: Super C3 green light on dial, hands, and markers Crown: Screw-down Strap/Band: 20mm Water resistance: 10 bar = 100 meters Case: 38mm diameter Lug-to-lug: 44.5 mm Thickness: 10.2 mm (including glass) Manufacturer: Militado Please feel free to comment if you have any questions. Also, if you have a preferred strap, please request it. I will accommodate you as much as possible. No pets, no smokers. Thank you.