Casio G-shock GA-2300-1A / GA-2300-4A / GA-2300-7A

Movement number 5725
Case size (length × width × height)
45.4 × 42.1 × 11.6 mm
weight：49g
Case and bezel material
Resin
Strap material
Resin strap
structure
Shock proof
Waterproof ability
200 meters waterproof
Batteries and battery life
Approximate battery life: 3 years with SR726W X 2
shell
glass material
mineral glass
Compatible strap sizes
145 to 215mm
other
luminous
watch function
world time
31 time zones (48 cities + UTC), daylight saving on/off
Stopwatch
1/100 second stopwatch
Measuring range:
00'00"00~59'59"99 (first 60 minutes)
1:00'00~23:59'59 (60 minutes later)
Units of measurement:
1/100 second (first 60 minutes)
1 second (after 60 minutes)
Measurement functions: elapsed time, split time, first and second place times
timer
countdown timer
Measurement unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (increase in units of 1 second, 1 minute and 1 hour)
Alarm/hourly time chime
5 daily alarms
report punctually
illumination
Dual LED lights
Surface LED light (super bright illumination, selective illumination duration (1.5 seconds or 3 seconds), afterglow function)
Digital screen LED backlight (super bright lighting, selective lighting duration (1.5 seconds or 3 seconds), afterglow function)
light color
LED: white
calendar
Fully automatic calendar (until 2099)
mute function
Button operation sound on/off
Accuracy: ±15 seconds per month
Other product features
12/24 hour format
Pointer movement function (the pointer can be moved, allowing you to clearly see the content on the digital display screen.)
General timing:
Hands: 2 hands (hours, minutes (hands move every 20 seconds)), 1 dial (day of the week)
Digits: hour, minute, second, afternoon, month, date