IWC · GST Aquatimer

Strap for GST Aquatimer Stainless Steel / Silver

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

21mm
Lug width21 mm
Case diameter42 mm
ReferenceIW3536-03 (aka: IW353603)
FamilyGST Aquatimer
MovementIWC caliber 37524 Hours, Minutes, Seconds, World Time | Date
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 IW3536-03 (aka: IW353603)

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The GST Aquatimer IW3536-03 (aka: IW353603), seen from the bench

The IWC GST Aquatimer features the caliber 37524 with hours, minutes, seconds, world time and date functions. The dive watch from the GST collection offers water resistance for sports diving. The reference IW353603 belongs to the brand's technical watch range.

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