This Michael Schumacher Racing Edition of the Omega Speedmaster will help you keep track of your road training thanks to its tachymeter bezel. The black tire tread-like dial face includes three tonal chrono subdials, orange-accented hour markers, luminous baton hands (with seconds hand), and a date window at 6 o'clock. It's matched to a triple-link stainless steel bracelet that mixes brushed and polished finishes. Other features include a 52-hour power reserve, a scratch-resistant and glare-proofed domed sapphire crystal, and water resistance to 100 meters (330 feet)--offering protection from accidental splashes as well suitable for swimming, snorkeling, and light recreational diving. A tachymeter is an instrument for measuring speed. It is a chronograph with a graduated dial on which speed can be read off in kilometers per hour based on 1000 meters distance. For example, the chronograph indicates that the distance of one kilometer has been covered in 30 seconds. The corresponding point on the tachymeter scale indicates 120, and thus the speed is 120km per hour.