36 mm 3N 18K yellow gold case, 6.40 mm thick, Double Eagle coin back, sapphire crystal, Double Eagle twenty dollar coin dial with black finish, caliber CO 293 hand-wound movement with hours and minutes, approximately 72 hour of power reserve, black alligator leather strap, pin buckle. Water resistant to 30 m. (Old reference 293.645.56/0001 MU59).