The Casio G-SHOCK GA-100-1A4DR-S is a rugged analog-digital watch that combines the iconic oversized GA-100 design with bold red accents. Built for extreme durability, it features a black resin case and band, a multi-layered high-impact dial, and G-SHOCK's legendary shock-resistant construction. Equipped with magnetic resistance, 200-meter water resistance, Super Illuminator LED lighting, and advanced timekeeping functions, it is the perfect companion for sports, outdoor adventures, work, 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
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)
High-accuracy quartz movement (±15 seconds per month)
Design & Materials
Black resin case
Black resin bezel
Black resin band
Buckle closure
Mineral glass
Magnetic Resistant construction
Shock-resistant construction
Oversized multi-layered dial
Lightweight yet rugged design
Colors
Case: Black
Bezel: Black
Band: Black Resin
Dial: Black with Red Accents
Hour Markers: Red
Hands: Black with luminous coating
Note: The GA-100-1A4DR-S is one of the most recognizable models in the GA-100 collection, featuring G-SHOCK's signature black-and-red color combination that symbolizes toughness and resilience while delivering professional-grade durability.
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-100-1A4DR-S Watch
Original Casio Box
Instruction Manual
Warranty Card (provided by the authorized distributor)
