Casio G-SHOCK The Origin Watch DW-5600RW-1ER

Introducing the Casio G-SHOCK DW-5600RW-1ER, a reinterpretation of the foundational G-SHOCK square that pairs absolute black with one of the most striking visual effects in the entire lineup. The case is matte black resin in its iconic square shape with rounded corners, featuring a wide bezel with embossed markings and text that blend seamlessly into the dark tone. What stops the eye is the dial: a digital display projecting a full iridescent rainbow gradient, shifting from gold and yellow at the top to electric blue, green and violet along the lower edges, creating the effect of a pixelated metallic mesh bathed in spectral light. The black resin strap features a fine granular texture with lateral perforations and a coordinated black buckle, completing a total black composition broken only by that chromatic burst on the display.

Inside works the Casio module 3525, a precision quartz digital caliber. The main display shows the time in large, easy-to-read digits. The upper line of the display shows the abbreviated day of the week alongside the date. The watch includes a 1/100-second stopwatch with up to 24-hour capacity, countdown timer, daily alarm, full auto-calendar and date display. The backlight illuminates the entire dial uniformly for night reading. Water resistance to 200 meters and triple shock protection structure compliant with MIL-STD-810.

The DW-5600RW-1ER belongs to G-SHOCK The Origin, the collection that pays direct tribute to the first G-SHOCK presented in 1983. That prototype, the DW-5000C, was born from engineer Kikuo Ibe's obsession with creating an unbreakable watch after seeing his father's timepiece shatter. After 200 failed prototypes and dropping them from a third-floor window, he found the solution: suspending the module inside a resin structure with internal shock absorption. Four decades later, the DW-5600 retains that unmistakable square silhouette, now with finishes that transform a technical instrument into a collector's piece.

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Technical Specifications

Reference: DW-5600RW-1ER
Module/Caliber: 3525
Collection: G-SHOCK The Origin
Type: Digital
Movement: Digital Quartz
Water Resistance: 200 meters
Shock Resistance: Yes, G-SHOCK protection structure
Case Material: Resin
Case Color: Matte Black
Case Shape: Square
Case Dimensions: 42.8 x 48.9 x 13.4 mm
Strap Material: Resin
Strap Color: Black
Dial Color: Black with rainbow iridescent effect
Crystal: Mineral
Illumination: Backlight
Weight: 52.0 g
Functions: 1/100-sec stopwatch (24 h), countdown timer, daily alarm, auto-calendar, 12/24 h format, LED backlight
Battery: CR2016
Designed for: Men

User manual

Download the manual in English (PDF)