IWC · GST Aquatimer

Strap for Aquatimer 2000 Stainless Steel / White / Bracelet

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

22mm
Lug width22 mm
Case diameter44 mm
ReferenceIW3568-09 (aka: 3568-09, IW356809)
FamilyGST Aquatimer
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the GST Aquatimer IW3568-09 (aka: 3568-09, IW356809)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The GST Aquatimer IW3568-09 (aka: 3568-09, IW356809), seen from the bench

The IWC GST Aquatimer IW3568-09 is a professional dive instrument launched in the early 2000s, featuring a 44 mm stainless steel case with water resistance exceeding 300 meters. The model incorporates an innovative internal rotating bezel controlled by a second crown, a technical hallmark of professional tool watches. Fitted with an automatic caliber movement and unidirectional rotating bezel, this watch demands a precisely measured 22 mm lug width for proper strap compatibility. Each component serves a defined purpose in a design built without compromise for demanding underwater use.

Frequently asked questions

What is the lug width of the IWC GST Aquatimer IW3568-09?

The lug width of the IWC GST Aquatimer IW3568-09 is precisely 22 millimetres. This dimension is consistent across all examples of this reference and must be observed when selecting any aftermarket strap to ensure perfect compatibility and absence of lateral play.

Which strap material is best for the GST Aquatimer IW3568-09?

For this model, vegetable-tanned alligator represents the optimal choice, offering natural patina development and elegant contrast with the steel case. For frequent aquatic use, vulcanised rubber or natural rubber is the rational choice, as it resists saltwater degradation without compromise. Italian calf leather is an equivalent alternative that combines elegance with practicality.

How do I change the strap on an IWC GST Aquatimer IW3568-09?

Strap replacement requires a spring bar tool equipped with flat-tipped pins. Insert the flat end under the lateral lug pin on the case and apply gentle pressure to release the pin from its seat, then remove the old strap. Position the new strap by aligning its pins with the lug apertures and push until you hear the click of secure seating. Proceed carefully to avoid case scratching.

Can I use a quality aftermarket strap on an IWC GST Aquatimer IW3568-09?

Absolutely. Artisanal 22mm straps from specialised manufacturers are fully compatible with your GST Aquatimer IW3568-09, provided they meet precise constructive specifications (22mm lug width, appropriate pins). Indeed, an aftermarket strap allows you to personalise the watch without compromising on build quality.

How long does a leather strap last on a watch like the IWC GST Aquatimer?

A vegetable-tanned leather strap, properly maintained (avoiding prolonged moisture and excessive heat), has an average lifespan of 3–5 years under daily wear. Alligator leather tends to endure longer (5–7 years), developing a desirable patina over time. Wear accelerates if frequently exposed to saltwater; in such cases, rubber or natural rubber options offer superior longevity.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only