• g-Shock G-SHOCK STANDARD Black Red GA-100B-4ADR Casio CASIO GA-100B-4ADR
  • g-Shock G-SHOCK STANDARD Black Red GA-100B-4ADR Casio CASIO GA-100B-4ADR
  • g-Shock G-SHOCK STANDARD Black Red GA-100B-4ADR Casio CASIO GA-100B-4ADR
  • g-Shock G-SHOCK STANDARD Black Red GA-100B-4ADR Casio CASIO GA-100B-4ADR
  • g-Shock G-SHOCK STANDARD Black Red GA-100B-4ADR Casio CASIO GA-100B-4ADR
  • g-Shock G-SHOCK STANDARD Black Red GA-100B-4ADR Casio CASIO GA-100B-4ADR
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g-Shock G-SHOCK STANDARD Black Red GA-100B-4ADR Casio CASIO GA-100B-4ADR

¥10,720
¥10,720
Tax included. Shipping calculated at checkout.
g-Shock G-SHOCK STANDARD Black Red GA-100B-4ADR Casio CASIO GA-100B-4ADR
g-Shock G-SHOCK STANDARD Black Red GA-100B-4ADR Casio CASIO GA-100B-4ADR
g-Shock G-SHOCK STANDARD Black Red GA-100B-4ADR Casio CASIO GA-100B-4ADR
g-Shock G-SHOCK STANDARD Black Red GA-100B-4ADR Casio CASIO GA-100B-4ADR
g-Shock G-SHOCK STANDARD Black Red GA-100B-4ADR Casio CASIO GA-100B-4ADR
g-Shock G-SHOCK STANDARD Black Red GA-100B-4ADR Casio CASIO GA-100B-4ADR


*This product is a parallel import product, so it is new and unused.
There may be scratches or dirt on the box. Please understand this before purchasing.



7 Year Warranty Campaign New colors are now available for the GA-100, a combination model of analog and digital that is popular for its wide face. The matte finish case and band feature G-SHOCK's brand colors of black and red. The dial has four LCD windows and a speed indicator arranged symmetrically, creating a clean face design. In addition, it boasts a high level of practicality as it is equipped with a 1/1000 second measurement stopwatch, speed measurement function, and JIS class 1 magnetic resistance. A tough new model that looks great in the street fashion scene. CASIO G-SHOCK G-Shock combination model black x red GA-100B-4ADR Domestic model part number: GA-100B-4AJF

Product number GST-B400GB-1A9DR
Drive method solar
Material: case resin/stainless steel
Material: belt resin
windshield inorganic glass
Dial color black/black
belt color black
Size (length x width x thickness) Approximately 46.6×49.6×12.9mm
belt around arm Approximately 14.5-21.5cm
weight Approximately 80g
Specifications ・Shock-resistant structure (shock resist)
・Carbon core guard structure
・20 ATM water resistant
・Tough Solar (solar charging system)
・Mobile link function (function linked via Bluetooth communication with compatible mobile phones)
・Compatible with “G-SHOCK Connected”
・Gold IP (bezel part)
・Neo Bright
・World Time: Time display in 38 cities around the world (38 time zones, automatic summer time setting function) + UTC (Coordinated Universal Time), home time city switching function
・Stopwatch (1/100 second (less than 1 hour) / 1 second (more than 1 hour), 24 hour meter, with lap/split)
・Timer (set unit: 1 second, maximum set: 60 minutes, measured in 1 second increments)
・5 time alarms ・Time signal
・Double LED light: LED light for dial (with super illuminator, afterglow function, afterglow time switching (1.5 seconds/3 seconds)), LED backlight for LCD section (with super illuminator, afterglow function, afterglow time switching (1.5 seconds/3 seconds))
・LED: White
・Full auto calendar
・Operation sound ON/OFF switching function
・Power saving function (turns off the display after a certain period of time in a dark place to save power)
・Battery indicator display
・Driving time: Operating time without solar power generation from full charge
For function use: Approximately 7 months
In power saving state: Approximately 18 months
・Accuracy *If not linked to a smartphone, it will operate with normal quartz accuracy (average monthly difference of ±15 seconds).
・Hand retraction function (If the needle overlaps with the LCD display and is difficult to see, you can temporarily retract the needle from above the LCD display.)
・12/24 hour display switching
・Date display (month/day display swap)
・Day of the week display (switchable between 6 languages: English, Spanish, French, German, Italian, and Russian)
accessories Instruction manual (English)
G-SHOCK original box
Guarantee One year warranty at our store