GWM5610-1
The classic square upgraded with solar charging and radio-controlled timekeeping.
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Story & heritage
Casio’s official US navigation lists the GWM5610-1 inside the square 5600 lineage, while Wikipedia identifies the GW-M5610 as a solar-powered DW-5600 variant with Multi-Band 6 time reception and an original-DW-5000C design homage.
It became the pragmatic enthusiast square: still visually classic, but with the low-maintenance features collectors ask for first.
Materials & craft
The model combines Tough Solar charging, Multi-Band 6 radio time calibration, shock resistance, 200-meter water resistance, world time and the thin digital square format.
That mix makes the watch feel less like a retro reissue and more like the classic G-SHOCK operating system brought up to daily-spec.
How to choose & style
Choose the 5610 when you want one square to wear constantly. It is discreet enough for travel layers and office casual, but its red line and grey bezel text keep the classic G-SHOCK signal.