IWC · GST Aquatimer

Strap for GST Perpetual Calendar Stainless Steel / Silver / Italian

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 diameter43 mm
ReferenceIW3756-22 (aka: IW375622)
FamilyGST Aquatimer
MovementIWC caliber 79261 hours, minutes, small seconds | date, day, month, perpetual calendar, year indicator | Chronograph
Year2001 - 2004
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 IW3756-22 (aka: IW375622)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The GST Aquatimer IW3756-22 (aka: IW375622), seen from the bench

The IWC GST Aquatimer IW3756-22 is a professional diver's tool watch from the 1990s, featuring a 43 mm stainless steel case with a 22 mm lug width. It houses the IWC caliber 79261 automatic movement, offering hours, minutes, small seconds, date, day, month, year indicator, and minute chronograph. The watch exemplifies IWC's engineering philosophy with functional design, robust construction, and professional dive certification, originally equipped with an integrated bracelet.

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.

Request an appointment →

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