Hamilton Jazzmaster Performer Auto movement with 80 hours power reserve. Features include a brushed and polished stainless steel case, blue dial with luminous silver tone hands and stick hour markers along with minute markers around the outer rim, leather strap made of calfskin with a brushed and polished stainless steel tang clasp. Includes fixed bezel, sapphire crystal glass (scratch resistant), screw down crown, unique case shape, see-through back, measuring 38mm in diameter and approximately 11.4mm thick, water resistance up to 100 meters or 330 feet, and comes with a WatchMaxx warranty.