Technical Archive

Casio
G-Shock 6900 GD-X6900MH-1

Casio G-Shock 6900 GD-X6900MH-1: strap made to measure on the watch at the Casati Milano atelier, by appointment.

Reference

GD-X6900MH-1

Movement

Casio caliber 3240 Perpetual Calendar | Chronograph, Countdown | Alarm

The Heritage

The G-Shock 6900 in the GD-X6900MH-1 reference mounts the Casio 3240 caliber with perpetual calendar, chronograph and countdown functions. The digital watch features a programmable alarm and the shock resistance characteristic of the G-Shock line. The construction follows the robustness standards of the Japanese brand for sports and outdoor use.

Made to Measure

The strap for this watch is made to measure

On the Casio G-Shock 6900 the bracelet is drawn as part of the case: no catalogue strap will fit. In the atelier we take the measurements on the watch itself and build the strap on the piece — that is the work of Casati Milano.

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FAQ

Can you fit a standard watch strap on this Casio G-Shock 6900?

No. The bracelet is integrated into the case — the lugs don't follow standard sizing. A regular strap won't attach. To change it, I work directly in the atelier: I build the strap bespoke, on your case.

How does the custom strap process work for the GD-X6900MH-1?

You come to <a href="/pages/casati-booking">Casati Milano</a>, by appointment only. I take measurements directly from your case and the integrated lugs. I design the strap to match the actual geometry of your watch, not a generic model.

What leather do you recommend for a G-Shock 6900?

I prefer technical leather — moisture-resistant and impact-tested. This watch was built for action, not for a static wrist. I choose substantial thicknesses and finishes that age well, that stand up to sweat and dirt without falling apart early.

How long does a properly made strap last?

With conscious daily use, 5 to 7 years. It depends on how you treat it: leather breathes better if dried after water exposure; reinforced thread holds up to repeated stress. It visibly ages, develops a patina that tells the story of wear. It doesn't just break down.

Why does the 6900 still matter, almost 30 years later?

Because it's not a marketing gimmick. The "Triple 10" — 10 years of battery, 10 bar water resistance, 10 metres drop resistance — solves real problems for people who actually wear it. It's a tool without rhetoric; form follows function honestly.