Case / bezel material: Resinresin bandresin glassWaterproof to a depth of 100 metersLED light,selectable illumination duration (1.5 seconds or 3 seconds), afterglowStep count using 3-axis accelerometer sensor: Step count display range 0 to 999,999 steps Stephistory display: Daily data (8 days)Step goal progress display (Target step count setting range: 1,000 to 50,000 steps in 1,000-step increments)Step Count Graph: Hourly step count for the last 7 hours on a 6-level graph.Power Saving: The sensor enters an auto-off state after a period of downtime.Time display in 2 areas (alternating with home time)1/ 100-secondstopwatch Maximum continuous timer:00'00''00~59'59''99 (for the first 60 minutes)1:00'00~23:59'59 (after 60 minutes)Measurement unit :1/100 second (for the first 60 minutes),1 second (after 60 minutes) Measuringmode: Measuring mode: Measuring time from start to current position. time for each period Timing to the finish line of racers placed 1st to 2nd. Memory capacity: up to 200 entries (month, date, hour and minute of starting measurement. timer for each lap/interval)Countdown timer Measuringunit: 1 secondCountdown range: 60 minutes Countdownstart time setting range: 1 second to 60 minutes (1-second increments and 1-minute increments)Alarm clock that wakes up 5 times dailyhourly signalAutomatically display full calendar (to year 2099).Time display in 12/24 hour format.Button operation sound on/offRegular timekeeping: Hour, minute, second, pm, year, month, date, day of the week.Accuracy: ±30 seconds per monthApproximate battery life: 3 years on CR2025 button batteries.Case size: 49.9×48.1×14.6mmTotal weight : 47g