Speedmaster Date Speedmaster Automatic (Japan) 3513.53

39 mm automaticAutomaticA mechanical movement wound by a rotor as the watch moves on the wrist. Speedmaster made for the Japanese market in 1996 with the Valjoux 7750-based caliberCaliberThe designation of a watch movement, identifying its design or movement family. 1152, sapphire crystalSapphire crystalA watch glass made from transparent synthetic sapphire, valued for its resistance to scratching. and plain seahorse caseback; on leather or bracelet.