18kt yellow gold case. Black leather strap. White mother-of-pearl dial. Date displays at 3 o'clock position. Chronograph. Tachymeter. Unidirectional rotating bezel. Scratch resistant sapphire crystal. Tang clasp. Case diameter 43.7mm. Automatic movement. Water resistant at 100 meters (330 feet). Breitling Windrider Chronomat Evolution Mens Watch K1335611-A5-435X 