Features: case/bezel material: gold tone stainless steel/resin gold tone stainless steel bracelet resin crystal luminous dial digital display chrono function led light 1/100-second stopwatches daily alarm am/pm display hourly time signal automatic calendar (february with 28 days) 12/24-hours format regular timekeeping accuracy: ± 30 seconds per month day and date display deployment clasp 30m water resistance approximate size of case: 36.8 x 33.2 x 8.2mm