Consisting of three of G-SHOCK's most notable cases, the Black X Red Heritage Color series features both digital and analog-digital styles. All three models feature a unique layered back in a rich red colorway that underscores the brands heritage and plays off the red highlights on the case & dial. SPECIFICATIONS Shock Resistant 200M Water Resistant LED light (Super Illuminator) Selectable illumination duration (1.5 seconds or 3 seconds), afterglow World time 31 time zones (48 cities + coordinated universal time), one touch UTC time zone, daylight saving on/off 1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, Countdown timer Measuring unit: 1 second Input range: 1 minnute to 60 minutes (1-minute increments) 5 daily alarms (with 1 snooze alarm) Hourly time signal Low battery warning (A warning appears on the display whenever battery power drops below a certain level.) Full auto-calendar (to year 2099) 12/24-hour format Accuracy: 15 seconds per month Button operation tone on/off Approx. battery life: 3 years Module: 5398 Size of case/total weight Band Length: 145mm - 215mm GA400HR 55.0 x 51.9 x 18.3mm / 70g