The men's Nixon 51-30 Chrono watch features a 6 hand Japanese quartz with a second sub dial movement with a chrono and date, a custom 300 meter stainless steel case with hardened mineral crystal, external rotating bezel with a countdown timer/screw crown at 9 o'clock posistion. (42.25m diameter) A custom solid stainless steel band with a brushed finish and double locking clasp. (25mm wide)