GA100RC-1A Strengthen your look with G-SHOCK in a design evoking rusted iron that stands the test of time. These watches pay homage to the undying G-SHOCK quest for the ultimate toughness in neoclassic black and rust designs evoking the sheer tenacity of rusted iron. Sepia tones inspired by the textural look of rusted metal nicely complement the base black. Accents in light blue make for timeless style with a rustic flair. Water resistance: 200 M World time: • 29 time zones (48 cities coordinated universal time) • Daylight saving on/off • Home city/World time city swapping Timer: • Countdown timer • Measuring unit: 1 second • Countdown range: 24 hours • Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) • Other: Auto-repeat Light: • LED light • Auto light switch • Selectable illumination duration (1.5 seconds or 3 seconds) • Afterglow Calendar: Full auto-calendar (to year 2099) Stopwatch: • 1/1000-second stopwatch • Measuring capacity: 99:59'59.999'' • Measuring modes: Elapsed time, lap time, split time • Others: Speed (0 to 1998 units/hour), Distance input (0.0 to 99.9) Mach indicator (speed exceeding 1225 units/hour) Alarm/hourly time signal: Hourly Time Signal 5 daily alarms (with 1 snooze alarm)