50M Water resistance provides safety during light water activities 1/100 Second Stopwatch (Chronograph) function allows you to measure Elapsed & Split (1st Place 2nd Place) Time with precision accuracy up to 59'59.99'' Estimated 7-Year battery life with included CR2016 model battery Auto-Calendar is set to ensure you're always on time with the date indicator set to include (28) day February Casio Module # 3224