SPECIFICATIONS Case: 316L Stainless, amalgamated w/ 1943 P-38 Lightning DNA Movement: Citizen Miyota OS10 Chronograph Crystal: Hardened mineral crystal with Diamondfx coating Case Size: 44mm Strap/Bracelet: Leather, 22mm bandwidth Water Resistance: 50M Certificate of authenticity included DETAILS Soar to new heights with the confidence of the P-38 Lightning Vintage WWII 1943 Military DNA Quartz Chronograph timepiece! From XO Retro, this novel offering integrates the metal DNA from an authentic P38 Lightning Aircraft from WWII into the round silver-tone stainless steel case. The DiamondFX crystal features 18 layers of UV blocking protection and a scratch resistant diamond/sapphire finish. The Lockheed P-38 Lightning was a World War II American propeller driven fighter aircraft. Developed to a United States Army Air Corps requirement, the P-38 had distinctive twin booms and a single, central nacelle containing the cockpit and armament.