Technical Archive

Casio
G-Shock 6900 GD-X6900HT-4

Casio G-Shock 6900 GD-X6900HT-4: strap made to measure on the watch at the Casati Milano atelier, by appointment.

GD-X6900HT-4 Heathered Red

Technical Specifications

Casio GD-X6900HT-4
Reference

GD-X6900HT-4

Movement

Casio caliber 3240 Perpetual Calendar | Chronograph, Countdown | Alarm

The Heritage

The G-Shock GD-X6900HT-4 features a 57.50mm resin case with a heathered red colorway. This model represents the 6900 collection, embodying 1990s Japanese streetwear aesthetics and extreme durability. The watch employs a non-standard integrated lug attachment, requiring specialized expertise for strap adaptation and customization.
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 I fit a standard strap on the Casio G-Shock 6900 GD-X6900HT-4?

No, the bracelet is integrated into the case. The lugs are not standard and a traditional strap will not attach. That's why I craft the strap bespoke, adapting it to the unique geometry of your case.

How does the bespoke strap service work for this model?

I work exclusively at <a href="/pages/casati-booking">Casati Milano</a>, by appointment only. I take measurements directly from your case, study the resin attachment points and hand-craft the strap for a seamless transition.

Which leather would you recommend for the G-Shock 6900?

I prefer black vegetable-tanned Tuscan leather. It dialogues well with the aggression of the resin case and ages with character, developing patina over time. It represents that sartorial awareness this urban instrument deserves.

How long does a well-made strap last?

A strap crafted with quality leather lasts years, depending on how you wear it. Well-treated leather ages beautifully, developing its own story. The key is care: avoid excessive moisture and let it breathe.

Why does the GD-X6900HT-4 deserve a bespoke strap?

Because it's an icon of Japanese streetwear culture, built for extreme durability. A tool watch with this character doesn't need reinvention—it needs that sartorial transition which makes it self-aware, without betraying its urban nature.