Linking history with innovation, this Longines Spirit Automatic Chronometer Men\'s Watch references the glory days of aviation so that the pioneering spirit can live on. At A Glance  Presented on a stainless steel bracelet 40mm case size with 100m water resistance Black matt dial with polished bezel Applied Arabic numerals filled with Swiss Super-LumiNova and date window at 3 o\'clock Silvered sandblasted hands Scratch resistant sapphire crystal glass with several layers of anti-reflective coating on both sides Powered by a Swiss self-winding mechanical movement Up to 64 hours power reserve Chronometer certified by COSC