. Shockproof . Diamagnetic . Waterproof 200 meters . Rubber strap . LED lighting (automatic lighting switch, selectable illumination lighting time) . World time 31 time zones (48 cities), daylight saving time (on / off), one-touch view of the world standard time, daylight saving time (on / off), local time / world time switch . 1/100 second stopwatch: Measuring limit: 23: 59'59.99 " Measuring mode: elapsed time, split time . Countdown Measuring unit: 1 second Measuring range: 1 minute to 60 minutes (increase unit: min) Other: Auto start measuring the elapsed time can be set at the end of the countdown time . Group 5 daily alarms (with one snooze alarm) . Hourly . Auto Calendar (to 2099) . 12/24 hour switch . BEEP (on / off) . Time mode: . Pointer: two needles (hour, minute (20 seconds per move once)) Digital: Hour, minutes, seconds, pm, month, date, day of week . Accuracy: ± 15 seconds per month . Battery life estimates: 3 years (with SR927W x 2) . Dimensions: 55.0 X 51.9 X 18.3 mm . Weight: 70 g