Inspired by the original Longines Ultra-Chron Diver of 1968, the new model and its new high-frequency calibre represent the first reinterpretation of what sets Longines apart – its status as a pioneer in the world of sports timing.It will appeal to both vintage watch aficionados and lovers of high technology. Featuring a steel bracelet, this model is delivered in a special presentation box containing a black NATO strap crafted from recycled material.43mm stainless steel case with a screw-down case back, a screw-in crown, and a unidirectional rotating bezelScratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sidesThickness: 13.6mmLug Distance: 22mmWeight: 185.7 gramBlack dial with applied indexes, silvered polished hands, and Swiss Super-LumiNova accentsInterchangeable stainless steel bracelet with a triple-safety folding clasp and push-piece opening mechanism, an additional black and red NATO strap crafted from recycled material, and a tool to easily switch between the strap and braceletL836 caliber automatic/self-winding mechanical movement beating at 36'000 vibrations per hour, with a monocrystalline silicon balance-spring power reserve of approximately 52 hoursMagnetic resistantSwiss madeWater-resistant up to 30 barLongines Style #: L28364529