IWC · GST Aquatimer

Strap for GST Perpetual Calendar Stainless Steel / White / English

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm
Lug width20 mm
Case diameter43 mm
ReferenceIW3756-19 (aka: IW375619)
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 IW3756-19 (aka: IW375619)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The GST Aquatimer IW3756-19 (aka: IW375619), seen from the bench

The IWC GST Aquatimer reference IW375619 is equipped with Caliber 79261, featuring chronograph and perpetual calendar functions with indication of day, month and year. The movement offers hours, minutes, central small seconds and date. This is a diving watch that combines chronograph complications with a mechanical perpetual calendar.

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