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Casio G-Shock Classic Octagon Series Chronograph Dual Display Black Plastic Strap Watch GA-2100-1AER – Sold by CALCULADOS / FBA

Updated at 23:02 on 20 October 2026
£69.91
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Casio presents the G-Shock GA-2100-1AER, a mens analogue-digital quartz watch from the Carbon Core Octagon Series. This timepiece features carbon-reinforced resin casing for structural strength plus a black colour scheme throughout. The watch includes a mineral dial window with Neobrite luminous coating on the hands for visibility in dark conditions. Designed for adult males, this G-Shock model combines traditional analogue display with digital functionality. The silicone strap is secured with a buckle clasp, plus the watch weighs 51 grams for lightweight wear. The lithium battery powers the quartz movement for accurate timekeeping.
The watch features dual illuminator technology with separate illumination for analogue or digital components, ensuring readability in low light conditions. The LED light offers selectable illumination duration of either 1.5 seconds or 3 seconds, with afterglow feature for extended visibility. Functional features include stopwatch for timing activities, countdown timer for intervals, perpetual calendar for automatic date adjustment, alarm for reminders, plus world time for tracking multiple time zones. Waterproof to 200 metres depth, this watch is suitable for diving or water activities. The mineral dial window provides clarity plus protection for the watch face.
The GA-2100-1AER incorporates shock protection construction with Hollow Core Guard Structure, designed to defend the watch mechanism against impact or vibration. This technology enhances durability during active use or physical activities. The carbon-reinforced resin casing provides structural integrity whilst maintaining the lightweight 51-gram total weight. Model number GA-2100-1ADR, series number 2100, part of the G-Shock collection. Easy reader design with clear analogue plus digital displays for convenient time reading. The watch arrives ready to wear with battery installed.

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