TAG Heuer Calibre 12 automatic chronograph watch makes it possible to measure times with an accuracy of 1/8th of a second. Fitted with very high frequency Swiss movements, it represents one of the great achievements in the long watchmaking tradition and history of the company. Showcasing reliability, simplicity of use and a highly legible display, fine brushed steel watch has a number of useful functions for professional and leisure sporting activities, as well as for everyday use. TAG Heuer fine brushed steel watchBuckle fasteningFine brushed steel square case, black alligator strap, black dial, Calibre 12 movement, Swiss made, crown design is faithful to original series, luminescent hands and indexes are hand applied and provide excellent visibility in the dark or underwater, Monaco and TAG Heuer logos, sapphire crystal caseback reveals TAG Heuer calibre in action, sapphire crystal cut from a polished slice of solid sapphire that has been created by the fusion and crystallization of alumina, sapphire is so hard that only a diamond can scratch it, small date window at 6 at 6 o'clock, square small seconds and chrono minutes at 3 and 9, rapid date correction, movement performance, date window Diameter 3cmWater resistant to 100m