These new models are based on the GA400 with its rotary switch feature. A collection of bold color combinations creates designs with plenty of visual impact with the color gradations of the GA400A hour, minute, and second hands recall the design motif of high-tech sneakers.

Casio created a watch face that is powerful yet elaborate by combining a popular big, bold case with an assortment of parts in a multilayered design. The watch is finished with the markings and lettering on the watch face in highly original color schemes, creating eye-popping watches that radiate a bright look and rock-solid presence.

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: ë± 15 seconds per month
Button operation tone on/off
Approx. battery life: 3 years
Digital Module: 5398

Size of case/total weight
GBA400 55 x 51.9 x 18.3 mm / 70g