Casio G-SHOCK 5600 Series Multi-Band 6 Digital Watch (GW-BX5600-1A1ER)

Overview

The Casio G-SHOCK GW-BX5600-1A1 brings advanced digital technology to one of the most recognisable watch designs ever created. Part of the iconic G-SHOCK 5600 Series, this sophisticated all-black model combines a high-resolution Memory-in-Pixel (MIP) display with Tough Solar charging, Bluetooth® Smartphone Link and Multi-Band 6 radio-controlled timekeeping. The result is a modern evolution of the original G-SHOCK square, delivering exceptional readability, precision and durability in a timeless design.

Distinguished by its stealth-inspired monochromatic appearance and negative digital display, the GW-BX5600-1A1 offers a discreet alternative to traditional positive-display G-SHOCK models. Its lightweight bio-based resin construction, shock-resistant structure and 200-metre water resistance make it suitable for demanding professional environments, outdoor activities and everyday wear. Weighing just 51 g, it combines advanced functionality with the comfort and reliability expected from G-SHOCK.

Key Features

• Iconic G-SHOCK 5600 Series square design with an understated all-black finish
• High-resolution negative Memory-in-Pixel (MIP) LCD with excellent contrast and wide viewing angles
• Tough Solar technology converts natural and artificial light into power
• Multi-Band 6 radio-controlled timekeeping for automatic time synchronisation
• Bluetooth® Smartphone Link through the CASIO WATCHES app
• Shock-resistant construction designed for demanding environments
• 200-metre water resistance for swimming and outdoor activities
• Bio-based resin case, bezel and strap
• Four selectable time display layouts
• Choice of STANDARD and CLASSIC display fonts through the smartphone app
• World Time covering 38 time zones and 55 cities, plus UTC
• 1/100-second stopwatch and 24-hour countdown timer
• Five daily alarms, including one snooze alarm
• Full Auto LED backlight with selectable illumination duration
• Power Saving function for extended battery operation
• Lightweight 51 g construction for comfortable everyday wear

Specifications

• Model: GW-BX5600-1A1
• Collection: G-SHOCK 5600 Series
• Display: Negative Memory-in-Pixel (MIP) LCD
• Case Dimensions: 49.1 × 44.1 × 13.4 mm
• Weight: 51 g
• Case & Bezel Material: Resin / bio-based resin
• Strap: Bio-based resin band
• Compatible Wrist Size: 145–205 mm
• Glass: Mineral glass
• Construction: Shock Resistant
• Water Resistance: 200 metres (20 bar)
• Power Source: Tough Solar rechargeable battery
• Time Adjustment: Multi-Band 6 radio control and Bluetooth® Smartphone Link
• Compatible App: CASIO WATCHES
• Battery Operating Time: Approximately 6 months after a full charge without further light exposure under normal use
• Power Saving Battery Life: Approximately 22 months after a full charge when stored in darkness with Power Saving enabled
• Timekeeping Accuracy: ±15 seconds per month without radio calibration or smartphone synchronisation
• Illumination: White LED backlight
• Country of Manufacture: Thailand

High-Definition Negative MIP Display

The GW-BX5600-1A1 introduces a significant advancement in G-SHOCK display technology with its high-contrast Memory-in-Pixel (MIP) LCD. Unlike conventional segmented LCD displays, MIP technology uses individually controlled pixels to produce sharper characters, detailed graphics and improved viewing angles. This delivers exceptional clarity when checking the time, date and other information, including in bright outdoor conditions.

The negative display features light-coloured characters against a dark background, complementing the watch's monochromatic design and creating a distinctive, understated appearance. It provides a modern interpretation of the classic G-SHOCK digital display without sacrificing functionality.

Four selectable time display layouts allow users to customise the information shown on screen, including dual-time and date-focused configurations. Through the CASIO WATCHES app, the main display font can also be changed between STANDARD and CLASSIC styles, allowing the watch to adopt either a contemporary appearance or a traditional seven-segment digital look.

Tough Solar Power

The GW-BX5600-1A1 incorporates Casio's Tough Solar charging technology, converting both natural and artificial light into electrical energy to power the watch. Despite its advanced MIP display and extensive digital functionality, the watch is designed to operate efficiently without requiring frequent conventional battery replacements.

Energy is stored in an integrated rechargeable battery, providing approximately six months of normal operation after a full charge without additional light exposure. When Power Saving mode is enabled, the watch can continue operating for approximately 22 months in darkness after a full charge.

The Power Saving function automatically switches off the display when the watch is left in darkness for extended periods, helping conserve energy. A low battery alert also provides a useful indication when additional charging is required.

Multi-Band 6 Radio-Controlled Timekeeping

For exceptional timekeeping accuracy, the GW-BX5600-1A1 features Multi-Band 6 radio-controlled technology. This system receives compatible time calibration signals from atomic timekeeping transmitters in the UK, Germany, North America, Japan and China, automatically correcting the watch's time when reception is available.

The watch can attempt automatic signal reception up to six times per day, with the number of attempts varying according to the transmitter. Once successful reception has been achieved, further automatic attempts are cancelled for that day.

For users working across different regions or travelling internationally, Multi-Band 6 provides a convenient way to maintain accurate time without regular manual adjustments. When radio reception is unavailable, the watch can also synchronise through a compatible smartphone using Bluetooth® connectivity.

Bluetooth® Smartphone Link

Bluetooth® Smartphone Link allows the GW-BX5600-1A1 to connect to a compatible smartphone using the CASIO WATCHES app. Once paired, the watch can automatically adjust its time and provides access to a range of convenient configuration functions through the smartphone interface.

The app makes it easier to manage World Time settings, customise the watch display and configure additional features without navigating complex button combinations.

• Automatic Time Adjustment: Synchronises the watch with a compatible smartphone.
• Easy Watch Settings: Configure watch functions and preferences through the CASIO WATCHES app.
• World Time: Access approximately 300 cities and user-added locations through the smartphone app.
• Time & Place: Record the current time and location using the connected smartphone.
• Phone Finder: Activate an audible alert on a connected smartphone to help locate it.
• Display Customisation: Switch between STANDARD and CLASSIC time display fonts.

Shock-Resistant Construction & 200-Metre Water Resistance

The GW-BX5600-1A1 retains the fundamental durability that has defined G-SHOCK since its introduction. Its shock-resistant construction is designed to protect the watch against impacts and vibration encountered during everyday use and demanding activities.

The case, bezel and strap incorporate bio-based resin, a material developed using renewable organic resources as an alternative to conventional petroleum-derived resin components. This approach supports Casio's efforts to reduce the environmental impact of selected watch materials while maintaining the durability and flexibility required for everyday wear.

With 200-metre water resistance, the watch is suitable for swimming, water-based activities and wet outdoor environments. The flexible resin strap and lightweight 51 g construction provide comfortable wear throughout long shifts, training sessions and outdoor adventures.

Watch Features & Functions

• World Time: Two World Time displays covering 38 time zones, 55 cities and Coordinated Universal Time (UTC), with daylight saving settings and Home Time / World Time swapping.
• 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.
• Countdown Timer: Adjustable from one second to 24 hours in one-second increments.
• Daily Alarms: Five daily alarms, including one snooze alarm.
• Hourly Time Signal: Optional audible signal every hour.
• LED Backlight: White Full Auto LED illumination with selectable 1.5-second or 3-second duration and afterglow.
• Full Auto Calendar: Automatically adjusts the date through to 2099.
• Time Format: Selectable 12 or 24-hour display.
• Date Display: Adjustable date/month display order.
• Button Tone: Option to enable or disable button operation sounds.
• Power Saving: Automatically switches off the display when the watch is left in darkness.
• Low Battery Alert: Indicates when the rechargeable battery requires additional charging.
• Time Calibration: Automatic and manual radio signal reception with reception result display.

Classic G-SHOCK Design, Modern Technology

The GW-BX5600-1A1 preserves the distinctive square silhouette that has become synonymous with G-SHOCK while introducing meaningful technological improvements. Its understated black finish and negative display provide a more discreet appearance than brightly coloured sports watches, making it particularly suitable for users who prefer practical, low-profile equipment.

The combination of solar charging, radio-controlled accuracy and smartphone connectivity reduces the need for manual adjustments, while the high-resolution MIP display provides a modern interface for accessing essential information. These features make the GW-BX5600-1A1 a dependable choice for users who value reliability, accuracy and straightforward functionality.

Why Choose the Casio G-SHOCK GW-BX5600-1A1?

The GW-BX5600-1A1 represents a significant evolution of the legendary G-SHOCK square. By combining the familiar 5600 Series design with a high-definition negative MIP display, Tough Solar charging, Multi-Band 6 radio control and Bluetooth® Smartphone Link, it delivers advanced digital functionality without compromising the simplicity and durability that made the original G-SHOCK an icon.

Its stealth-inspired monochromatic finish, lightweight construction and 200-metre water resistance make it an excellent option for professionals, outdoor enthusiasts and everyday wearers seeking a dependable digital watch. For anyone who appreciates traditional G-SHOCK styling but wants modern display technology and highly accurate timekeeping, the GW-BX5600-1A1 offers an impressive combination of performance, comfort and reliability.

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.