Longines Sport Collection Swiss Automatic Chronometer Watch With A Grey Stainless steel Bracelet Strap, Green Coloured Bi-directional Rotating Bezel, Anthracite Coloured Dial & Date Window. Historically, Longines has accompanied legendary pioneers as they conquer air, land and sea. Today, the winged hourglass brand has drawn inspiration from this heritage to create Longines Spirit, a collection with an impeccable pedigree. This collection links history with innovation by combining references to the glory days of aviation with present-day aesthetic and technical requirements. These resolutely contemporary timepieces are a testimony to the pioneering spirit that has inspired the brand since its earliest days. A glowing tribute to these exceptional men and women who, by a record, an exploit or a display of courage, have left their mark on history - pushing new generations to surpass themselves. Chronometer certified by the COSC Glass: Scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides Lug Distance:22 mm Weight: 164.6 g Speciificities: Swiss Super-LumiNova® Movement and Functions: CAliber: L844.4 Movement: Self-winding mechanical movement beating at 25'200 vibrations per hour, with a monocrystalline silicon balance-spring power reserve of approximately 72 hours Functions: Hours, minutes, seconds and date. 24 hours hand with time zone mechanism SpecialFunctions: The Pioneer Spirit Lives On Buckle: With double safety folding clasp and push-piece opening mechanism INterchangability: Easily change your bracelet/strap thanks to the Longines interchangeable system