JAPAN SET 100% ORIGINAL CASIO G-SHOCK GW-8900-1JF / GW-8900A-1JF / GW-8900-1 / GW-8900A-1 / GW-8900 / GW-8900A

This is a standard model that pursues basic functions from G-SHOCK, which continues to evolve in pursuit of toughness. The large, rugged case typical of G-SHOCK features large, easy-to-operate buttons. In addition, the light is equipped with a white high-brightness LED that allows you to switch the emission time. It is a fully automatic LED light that senses light and darkness and emits light just by tilting your arm. The brand color red is used as an accent color.

Case size (length x width x thickness)
55.1 × 52.5 × 16.3 mm
mass
76g
Case/bezel material
Resin/stainless steel
band
resin band
structure
Shock-resistant structure (shock resist)
Waterproof
20 ATM water resistant
Time correction
Radio clock MULTIBAND6 for Japan, North America, Europe, and China regions
Power supply/battery life
Tough solar (solar charging system)
glass
inorganic glass
world time
World Time: Time display in 48 cities around the world (31 time zones, daylight saving time setting function) + UTC (Coordinated Universal Time), UTC direct call function
stopwatch
Stopwatch (1/100 second, 24 hour meter, with split)
timer
Timer (set unit: 1 minute, maximum set: 24 hours, measured in 1 second increments)
alarm
5 time alarms (only 1 with snooze function) / time signal
light
LED backlight (fully automatic light, super illuminator, afterglow function, with afterglow time switching (1.5 seconds/3 seconds))
light color
LED: white
calendar
Fully automatic calendar
Operation sound ON/OFF switching function
Operation sound ON/OFF switching function
Power saving function
Power saving function (turns off the display after a certain period of time in a dark place to save power)
Battery display/warning
battery indicator display
driving time
Operating time without solar power generation from full charge
When using functions: Approximately 10 months
In power saving state: Approximately 33 months
accuracy
*If radio waves are not received, it will operate with normal quartz accuracy (average monthly difference of ±15 seconds).
Other functions
12/24 hour display switching
Time adjustment details
Home time city (cities compatible with reception function) Received radio waves
Tokyo, Seoul, Taipei/Japanese standard radio waves JJY40/JJY60
(Honolulu), (Anchorage), Vancouver, Los Angeles, Edmonton, Denver, Mexico City, Chicago, New York, Halifax, St. John's / American standard radio WWVB
Lisbon, London, Madrid, Paris, Rome, Berlin, Stockholm, Athens, (Moscow) / British standard radio wave MSF / German standard radio wave DCF77
Hong Kong, Beijing/China standard radio wave BPC
*Cities in parentheses may receive data if conditions are good.
Radio reception function: automatic reception (up to 6 times/day) (up to 5 times/day for Chinese radio waves)/manual reception,
Received radio waves: JJY, frequency: 40kHz / 60kHz (model compatible with both Fukushima and Kyushu stations)
Received radio wave: WWVB, frequency: 60kHz