G-SHOCK GLX-5600RT-4ER

The G-SHOCK GLX-5600RT-4 is a high-performance sports timepiece from the G-LIDE surfing series, distinguished by its vibrant, high-energy orange colorway. Designed to meet the specialized needs of surfers and extreme sports athletes, it blends the iconic 1983 DW-5600 square silhouette with essential aquatic functionality. The watch is constructed with a rugged, shock-resistant resin case measuring 46.7 × 43.2 × 12.7 mm, built to withstand high-impact environments. A core feature of this model is its dedicated tide graph, which displays tidal levels for specific dates and times, paired with a moon age and phase tracker to help surfers time their sessions perfectly. The face is finished with a mirror-effect sputter coating, ensuring clear readability and a premium aesthetic even under intense sunlight.

Beyond its surfing-focused utilities, the GLX-5600RT-4 delivers professional-grade durability and performance. It features a 1/100-second stopwatch with a 5-second countdown auto-start, a versatile countdown timer with auto-repeat and progress beeper, and three independent multi-function alarms. The watch utilizes an Electro-luminescent (EL) backlight with an auto-light feature and a “Flash Alert” system, where the display illuminates in sync with alarms and timer alerts. With a 200-meter water resistance rating and a high-efficiency CR2025 battery providing approximately 7 years of operation, it is an exceptionally reliable tool for water sports. While part of the unisex sports range, its striking orange profile and comfortable square geometry make it a standout choice for anyone seeking a durable, adventure-ready timepiece.

Basic Information

Reference: GLX-5600RT-4
Collection: G-LIDE (Surfing Series)
Case Dimensions (L× W× H): 46.7 × 43.2 × 12.7 mm
Weight: 53 g
Case and Bezel Material: Resin
Construction: Shock Resistant
Water Resistance: 200-meter (20 bar)
Power Supply: CR2025 battery (approx. 7-year life)

Movement & Features

Module: 3151
Stopwatch: 1/100-second (Measuring capacity 23:59’59.99″; features 5-second countdown auto-start)
Surfing Features: Tide graph (tide level for specific date/time), Moon data (moon age and phase graph)
Timer: Countdown timer (1-second increments; range up to 24 hours; auto-repeat)
Alarm: 3 independent multi-function alarms (2 one-time, 1 snooze), hourly time signal
Flash Alert: Flashes with buzzer for alarms, signals, and timer alerts
Light: Electro-luminescent backlight with auto-light switch and afterglow
Calendar: Full auto-calendar (to year 2099)

Exterior

Glass: Mineral Glass
Band Material: Resin
Dial Finish: Metal dial with sputter-coating mirror finish