Technical Archive

Casio
G-Shock GA-110 GA-110AC-4A

Casio G-Shock GA-110 GA-110AC-4A: strap made to measure on the watch at the Casati Milano atelier, by appointment.

GA-110AC-4A Red

Technical Specifications

Casio GA-110AC-4A
Reference

GA-110AC-4A

Movement

Casio caliber 5146 World Time | Perpetual Calendar | Chronograph, Countdown | Alarm

The Heritage

The G-Shock GA-110 belongs to Casio's collection of digital-analog sport watches. It is equipped with the 5146 quartz caliber featuring chronograph, countdown, alarm, perpetual calendar and world time functions. The resin case features the typical robust design of the G-Shock line with shock protection.
Made to Measure

The strap for this watch is made to measure

On the Casio G-Shock GA-110 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 a standard strap be fitted to the Casio G-Shock GA-110AC-4A?

No, the GA-110AC-4A's strap attachment is integrated into the case and incompatible with conventional straight-bar straps. However, a completely custom-made strap can be built directly on your watch: this is the specialised work of <a href="/pages/casati-booking">Casati Milano</a>, where the craftsman measures exact specifications and creates the strap in artisanal leather.

How does the custom strap realisation work for this model?

During an appointment at <a href="/pages/casati-booking">Casati Milano</a>, the craftsman precisely measures your GA-110AC-4A's case attachment, lug position, and the specific geometry of this model. A fully personalised strap is then constructed in your choice of leather and finish, hand-stitched using traditional techniques. The strap is created directly on the watch, ensuring every detail is perfect.

What leather suits the character of the Casio G-Shock GA-110AC-4A?

The GA-110AC-4A is an urban tool watch, so it naturally pairs with robust, textured leathers: aged cordovan, vegetable-tanned bovine leather with developed patina, rough suede. Avoid smooth, polished leathers, which contradict the watch's technical identity. Leather with micro-scratches, controlled imperfections, and natural ageing signs amplifies the visual language of the resin case.

How long does a well-crafted strap last?

A strap made with quality leather and hand-stitched using traditional techniques lasts for years, often outliving the watch itself. Leather ageing is part of the appeal: it develops a personal patina and unique texture. Maintenance is minimal—occasional cleaning and periodic conditioning—and the strap improves aesthetically over time.

Why does the GA-110AC-4A remain an icon after 40 years?

Because the G-Shock invented the language of the modern tool watch: a case that protects movement through geometry and material density, not ornamentation. The GA-110AC-4A maintains this pure philosophy, adding a complex movement with chronograph and world time, without betraying the brutal aesthetic that defines it. It's iconic because it refuses aesthetic compromise and speaks the language of those who want an instrument, not jewellery.