Features: case/bezel material: stainless steel leather strap quartz movement mineral crystal black dial analog digital display chronograph function telememo 30 world time current time in 30 cities (29 time zones) 1/100-second stopwatch countdown timer 3 daily alarms hourly time signal full auto-calendar (to year 2099) 12/24-hour format regular timekeeping luminous hands accuracy: ±30 seconds per month day and date display pull/push crown solid case back buckle clasp 100m water resistance approximate size of case: 52 x 47.6 x 14.2mm