Casio G-Shock Analog Digital Black-Out GA-2100-1A1

Casio G-Shock Digital Analog GA2100 Series Black-Out

GA2100-1A1


A Legacy Reimagined — Ultra-Thin G-SHOCK Toughness

Since the debut of the iconic DW-5000C in 1983, G-SHOCK has relentlessly pushed the boundaries of durability and innovation in timekeeping. These latest models carry that legacy forward, combining rugged performance with a sleek, ultra-thin profile that redefines modern wristwear.

Inspired by the original DW-5000C, the design features the signature octagonal bezel — a timeless silhouette that blends heritage with contemporary minimalism. The analog-digital display is housed in a clean, no-frills layout that delivers essential functionality without compromising the toughness G-SHOCK is known for.

Crafted from high-strength resin reinforced with carbon fiber, the case measures just 11.8 mm thin — the slimmest ever among G-SHOCK combination models. This advanced material engineering ensures lightweight comfort while maintaining the shock resistance and durability expected from the brand.

Whether you're a longtime collector or new to the G-SHOCK universe, this model offers a bold yet refined take on toughness — built to perform, designed to impress.

Neobrite: Only for GA-2100-1A, GA-2100-4A

Carbon Core Guard Structure
A new carbon core guard structure protects the module by enclosing it in a carbon case. The case is made of fine resin embedded with carbon fibres for outstanding strength and crack resistance.




GA-2100-1A1 Specification:

Movement
Analog-digital
Accuracy: ±15 seconds per month
Approx. battery life: 3 years on SR726W × 2

Exterior
Shock Resistant
Case/bezel material: Carbon / Resin　
Resin Band
Mineral Glass
Shock Resistant
Carbon Core Guard structure
Size of case: 48.5mm × 45.4mm × 11.8mm
Total weight: 51g

Other Details
Water Resistant 200M
Double LED Light
LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
World time
31 time zones (48 cities + coordinated universal time), daylight saving on/off
1/100-second stopwatch
Measuring capacity:
00'00''00~59'59''99 (for the first 60 minutes)
1:00'00''~23:59'59'' (after 60 minutes)
Measuring unit:
1/100 second (for the first 60 minutes)
1 second (after 60 minutes)
Measuring modes: Elapsed time, split time, 1st-2nd place times
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
5 daily alarms
Hourly time signal
Hand shift feature
Full auto-calendar (to year 2099)
12/24-hour format
Button operation tone on/off
Regular timekeeping
Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)
Digital: Hour, minute, second, pm, month, date

* Kindly note that the displayed image is either a graphic representation or a prototype and may not reflect the final product precisely. Color variations may occur due to differences in browsers, display settings, or devices used for viewing. Additionally, the orientation of the case back in the actual product may differ from what is shown in the photograph.