Digital quartz movement, Chronograph featuring stopwatch with 5-second countdown option, split time readings and elapsed time measurement, 150-lap recall function, Interval training timer programmable up to 10 intervals, Dual time zone display, Toggling between 12 and 24-hour format, Hourly chime and 3 independent alarms, Backlight with afterglow, Positive (dark-on-light) digital numbers, Digital day-date-and-month display, Calendar year to 2099, Molded grey/green bezel indicating functional modes etched with Speedo logo, Clear/grey translucent polycarbonate case with scratch-resistant coating, Grey ‘Hydro Pushers’ selector buttons can be pushed at pressure of 3 ATM, Stainless steel caseback, 100 meters/330 feet water resistant