CASIO G-SHOCK GM-5600SCM-1DR Men's WatchProduct Highlights Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) Measuring capacity 00'00''00~59'59''99 (for the first 60 minutes) Measuring unit 1 second Measuring modes Elapsed time, split time, 1st 2nd place times Countdown range 24 hours Countdown start time setting range 1 second to 24 hours (1 second increments, 1 minute increments and 1 hour increments) Other Auto repeat EL Blue Green Accuracy 15 seconds per month Retail