Solid stainless steel 48mm casing and high quality durable Vulcanized rubber strap Classic easy strap on with engraved buckle Distinctive Tourbillion Display counter Screw-in crown Detailed Display of Tourbillion counter and dial Solid steel back with crystal clear front glass All the appropriate Corum markings and wordings Detailed logo, serial/model number engraved on the back Weight and feel very close to the original