Casio G-SHOCK GA-2300 Series Analogue Digital Watch (GA-2300-8AER)

Overview

The Casio G-SHOCK GA-2300-8A introduces a compact, futuristic approach to G-SHOCK's renowned analogue-digital watch design. Part of the GA-2300 Series, this distinctive timepiece combines a contemporary grey colour scheme with an angular resin case, layered dial detailing and a streamlined profile. Its minimalist styling delivers a modern interpretation of G-SHOCK toughness, offering a versatile alternative to larger, more traditional sports watches.

Designed to deliver dependable performance without unnecessary bulk, the GA-2300-8A features shock-resistant construction, 200-metre water resistance and a comprehensive selection of digital timekeeping functions. Its compact 45.4 × 42.1 mm case measures just 11.6 mm thick and weighs only 49 g, making it particularly comfortable for extended wear. With Double LED Super Illuminator technology, World Time, stopwatch and countdown timer functions, the GA-2300-8A combines distinctive styling with the everyday practicality expected from G-SHOCK.

Key Features

• Contemporary G-SHOCK GA-2300 Series design with a compact, futuristic profile
• Versatile grey resin case, bezel and strap with minimalist styling
• Distinctive analogue-digital display with layered dial detailing
• Shock-resistant construction for dependable everyday durability
• 200-metre water resistance for swimming and outdoor activities
• Lightweight 49 g construction for comfortable extended wear
• Slim 11.6 mm case profile with compact 42.1 mm width
• Double LED Super Illuminator for improved visibility in darkness
• Neobrite luminous coating for enhanced low-light readability
• World Time covering 31 time zones and 48 cities, plus UTC
• 1/100-second stopwatch with elapsed and split-time measurement
• 24-hour countdown timer for training and everyday timing tasks
• Five daily alarms and optional hourly time signal
• Hand Shift function for an unobstructed view of the digital display
• Full auto calendar programmed through to 2099
• Approximately three-year battery life

Specifications

• Model: GA-2300-8A
• UK Model Reference: GA-2300-8AER
• Collection: G-SHOCK GA-2300 Series
• Display: Analogue and digital
• Case Dimensions: 45.4 × 42.1 × 11.6 mm
• Weight: 49 g
• Case & Bezel Material: Resin
• Case Colour: Grey
• Strap: Grey resin band
• Compatible Wrist Size: 145–215 mm
• Glass: Mineral glass
• Construction: Shock Resistant
• Water Resistance: 200 metres (20 bar)
• Movement: Analogue-digital quartz
• Power Source: Two SR726W batteries
• Battery Life: Approximately 3 years
• Timekeeping Accuracy: ±15 seconds per month
• Illumination: Double white LED Super Illuminator with afterglow
• Additional Features: Neobrite, Hand Shift and full auto calendar
• Country of Manufacture: Thailand

Compact Futuristic Design

The GA-2300-8A represents a distinctive evolution of G-SHOCK's design philosophy, combining angular case geometry with a compact, contemporary silhouette. Its carefully proportioned resin construction creates a streamlined appearance while retaining the bold structural elements associated with the G-SHOCK collection.

The grey colour scheme gives the watch a versatile, understated character, allowing the distinctive case shape and intricate dial layout to become the main visual features. Unlike conventional round sports watches or the familiar octagonal 2100 Series, the GA-2300 introduces a more technical, futuristic aesthetic with a distinctive arrangement of analogue and digital elements.

The compact case measures 45.4 mm in length and 42.1 mm in width, making it a practical choice for users who prefer a smaller G-SHOCK without compromising on durability. Its slim 11.6 mm profile further enhances everyday comfort, allowing the watch to sit neatly on the wrist during work, travel and outdoor activities.

G-SHOCK Shock Resistance

The GA-2300-8A incorporates Casio's proven shock-resistant construction, designed to protect the internal watch module against impacts and vibration. This durable structure is central to the G-SHOCK philosophy, providing dependable protection during everyday use and physically demanding activities.

The robust resin case and protective bezel help safeguard the watch against knocks, while the flexible resin strap provides a comfortable and secure fit. Mineral glass protects the dial against the wear associated with regular use, contributing to a practical design built for long-term reliability.

Despite its rugged construction, the GA-2300-8A weighs just 49 g. This lightweight design reduces bulk on the wrist, making it particularly suitable for extended periods of wear. Whether used during long working days, travel or outdoor activities, the watch provides G-SHOCK durability in a compact and comfortable format.

200-Metre Water Resistance

With 200-metre water resistance, the GA-2300-8A is designed to withstand exposure to water during swimming, wet weather and recreational water-based activities. This substantial level of resistance makes it a practical choice for users who regularly encounter challenging environmental conditions.

Combined with G-SHOCK's shock-resistant construction, the water-resistant design provides versatility across a wide range of environments. From everyday commuting and outdoor recreation to physically demanding work, the GA-2300-8A is designed to deliver dependable performance when exposed to the elements.

Analogue-Digital Timekeeping

The GA-2300-8A combines the traditional appearance of analogue timekeeping with the convenience of digital functionality. Two central hands provide clear hour and minute indications, while an integrated digital display and separate day indicator offer access to additional information without compromising the distinctive design of the dial.

The practical Hand Shift function temporarily moves the analogue hands away from the digital display when they obstruct important information. This allows users to read stopwatch measurements, countdown settings and other digital functions without waiting for the hands to move naturally.

World Time functionality covers 31 time zones across 48 cities, plus Coordinated Universal Time (UTC), with selectable daylight saving settings. This makes the watch useful for international travel, coordinating activities across different regions and monitoring time differences.

Double LED Super Illuminator

The GA-2300-8A features Casio's Double LED Super Illuminator system, providing separate illumination for the analogue dial and digital display. This dual-light arrangement improves visibility in darkness, allowing users to check the time and access digital functions in poorly illuminated environments.

Both lighting systems use white LEDs and offer selectable illumination durations of 1.5 or 3 seconds, with an afterglow function providing additional visibility after activation. Neobrite luminous coating further supports analogue time reading in low-light conditions following exposure to light.

Whether checking the time during evening activities, working in poorly lit environments or travelling after dark, the combination of LED illumination and luminous detailing provides practical visibility throughout the day and night.

Watch Features & Functions

• World Time: 31 time zones covering 48 cities plus Coordinated Universal Time (UTC), with daylight saving on/off settings.
• Stopwatch: 1/100-second measurement for the first 60 minutes, switching to one-second measurement thereafter, with a maximum measuring capacity of 23 hours, 59 minutes and 59 seconds.
• Stopwatch Modes: Elapsed time, split time and first/second-place finish times.
• Countdown Timer: Adjustable from one second to 24 hours, with one-second, one-minute and one-hour setting increments.
• Daily Alarms: Five independent daily alarms for reminders and scheduled activities.
• Hourly Time Signal: Optional audible notification every hour.
• Double LED Light: Separate white LED illumination for the analogue dial and digital display, with selectable 1.5-second or 3-second duration and afterglow.
• Hand Shift: Temporarily moves the analogue hands away from the digital display for improved visibility.
• Neobrite: Luminous coating to assist analogue time reading in low-light conditions.
• Full Auto Calendar: Automatically adjusts the date through to 2099, including month lengths and leap years.
• Time Format: Selectable 12 or 24-hour digital display.
• Button Tone: Option to enable or disable button operation sounds.
• Analogue Display: Hour and minute hands, with the minute hand advancing every 20 seconds, plus a dedicated day indicator.
• Digital Display: Hours, minutes, seconds, PM indicator, month and date.
• Quartz Accuracy: Approximately ±15 seconds per month under normal operating conditions.

Lightweight Comfort & Everyday Versatility

One of the defining characteristics of the GA-2300-8A is its compact, lightweight construction. Weighing just 49 g and measuring only 11.6 mm thick, it offers a comfortable alternative to larger G-SHOCK models while retaining the durability and functionality expected from the collection.

The flexible resin strap accommodates wrist sizes from 145 to 215 mm, providing a secure fit for a wide range of users. Its streamlined proportions reduce interference with clothing and equipment, making it particularly practical during extended periods of activity.

The combination of shock resistance, 200-metre water resistance and comprehensive timekeeping functions makes the GA-2300-8A suitable for work, travel, training and everyday use. Its neutral grey styling also allows it to complement a variety of clothing and equipment without appearing overly elaborate.

Reliable Three-Year Battery Life

The GA-2300-8A is powered by two SR726W batteries, providing approximately three years of operation under normal usage conditions. This dependable battery-powered design reduces the need for frequent maintenance and eliminates the requirement for regular charging.

Unlike smartwatches and connected devices, the GA-2300-8A does not depend on smartphone pairing, wireless connectivity or software updates. Its conventional quartz movement delivers accurate, reliable timekeeping with straightforward operation and minimal user intervention.

Why Choose the Casio G-SHOCK GA-2300-8A?

The GA-2300-8A combines G-SHOCK's renowned durability with a distinctive compact design that stands apart from the brand's more traditional models. Its contemporary grey colour scheme, angular case construction and layered analogue-digital dial create a modern appearance, while its lightweight 49 g construction and slim profile ensure excellent everyday comfort.

Beyond its styling, the watch delivers dependable performance through shock-resistant construction, 200-metre water resistance, Double LED Super Illuminator technology and comprehensive timing functions. With approximately three years of battery life and a practical, easy-to-use interface, the GA-2300-8A is an excellent choice for anyone seeking a compact, durable analogue-digital watch with contemporary styling and everyday versatility.

Authorised Casio Retailer

TacTree is an authorised Casio UK retailer. All Casio watches supplied are 100% genuine, brand new and sourced through approved UK distribution channels. Orders are supplied with official Casio packaging and manufacturer documentation for complete authenticity and peace of mind.