The Casio G-SHOCK GA-100-1A1DR-B is a rugged analog-digital watch featuring an all-black stealth design that combines bold styling with legendary durability. Built with G-SHOCK's shock-resistant construction, it features a black resin case and band, an oversized multi-layered dial with black ion-plated hands and indexes, and 200-meter water resistance. Equipped with magnetic resistance, Super Illuminator LED lighting, and advanced timekeeping functions, it is ideal for sports, work, travel, and everyday wear. Official specifications are based on Casio's official product documentation.
Key Features
Shock Resistant
Magnetic Resistant
200-meter water resistance (20 Bar)
Analog and digital display
Stealth all-black design
Oversized multi-layered dial
Super Illuminator LED light
World Time
1/1000-second stopwatch
Countdown timer
5 daily alarms
Full auto-calendar
Auto LED light
12/24-hour time formats
Timekeeping
Displays:
Hour
Minute
Second
Day
Date
Analog and digital time display
World Time (29 time zones, 48 cities + UTC)
12/24-hour time formats
Full auto-calendar (to 2099)
Accuracy: ±15 seconds per month
Design & Materials
Black resin case
Black resin bezel
Black resin band
Buckle closure
Mineral glass
Shock-resistant construction
Magnetic Resistant (ISO 764 compliant)
Oversized multi-layered dial
Comfortable lightweight resin construction
Colors
Case: Black
Bezel: Black
Band: Black Resin
Dial: Matte Black
Hour Markers: Black
Hands: Black with luminous coating
Note: The GA-100-1A1DR-B is one of G-SHOCK's most iconic stealth models, featuring a monochrome black finish throughout while maintaining the toughness, functionality, and oversized styling that define the GA-100 series.
Power
Battery Type: CR1220
Approximate Battery Life:2 Years
Water Resistance
200 meters (20 Bar)
Suitable for:
Daily hand washing
Showering
Swimming
Snorkeling
Recreational scuba diving
What's Included
Casio G-SHOCK GA-100-1A1DR-B Watch
Original Casio Box
Instruction Manual
Warranty Card (provided by the authorized distributor)