Casio G-SHOCK Watch GA-2100HDS-7AER

Introducing the Casio G-SHOCK GA-2100HDS-7AER, a version of the legendary GA-2100 that commits fully to all-white visual purity. The octagonal case, dial and strap are finished entirely in bright white, creating a monochromatic statement that is broken precisely by metallic grey rectangular indices and sharp navy blue accents on the inner bezel minute markers, the main hands and the day-of-week subdial at 9 o'clock. The hour and minute hands feature a wide angular profile lacquered in deep blue with a luminescent core, creating a powerful contrast against the matte white dial surface. The digital display at 6 o'clock shows the second time zone and date on a neutral grey background, preserving legibility without disrupting the overall chromatic harmony.

Inside runs the Casio module 5611, an analog-digital caliber coordinating three hands with a compact LCD display. The subdial at 9 indicates the day of the week via a rotating disc with abbreviations in blue. The digital display shows a second time zone, the date and DST and HND status indicators. The watch offers world time across 31 time zones and 48 reference cities, a 1/100-second stopwatch up to 24 hours, countdown timer, five daily alarms, hourly time signal and an automatic calendar programmed through 2099. Illumination is activated via the LIGHT button with an LED that evenly lights both the hands and the display.

G-SHOCK was born in 1983 by engineer Kikuo Ibe, who set out to build a watch that could survive a 10-meter free fall. After 200 failed prototypes, the floating module structure that shields the movement from shock became an industry benchmark. The GA-2100 introduced in 2019 the Carbon Core Guard architecture, incorporating carbon into the internal case pillars to reduce thickness and weight without sacrificing protection. This HDS-7AER variant carries all that engineering beneath a minimalist aesthetic that has made it a reference point in design and urban culture circles.

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Technical Specifications

Reference: GA-2100HDS-7AER
Module/Caliber: 5611
Type: Analog-Digital
Movement: Quartz
Water Resistance: 200 meters (20 BAR)
Shock Resistance: Yes, Carbon Core Guard structure
Case Material: Resin
Case Color: White
Strap Material: Resin
Strap Color: White
Dial Color: White with blue accents
Crystal: Mineral
Illumination: LED
Diameter: 45.4 mm
Total Width (with crown): 48.5 mm
Thickness: 11.8 mm
Weight: 51.0 g
Functions: Analog hour and minute hands, digital second time zone, day of week (subdial), date, world time (31 zones / 48 cities), 1/100-sec stopwatch up to 24 h, countdown timer, 5 daily alarms, hourly time signal, auto calendar through 2099, DST and HND indicators
Battery: SR726W x 2
Made for: Men

User manual

Download the manual in English (PDF)