IWC · GST Aquatimer

Strap for Aquatimer Deep Three

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 diameter46 mm
ReferenceIW3557-01 (aka: 3557-01, IW355701)
FamilyGST Aquatimer
MovementIWC caliber 30120 hours, minutes, seconds | date
Year2014
CaseTitanium

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 IW3557-01 (aka: 3557-01, IW355701)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The GST Aquatimer IW3557-01 (aka: 3557-01, IW355701), seen from the bench

The GST Aquatimer represents the IWC diving line with a case designed for diving and basic functions of hours, minutes, seconds and date. It is equipped with the automatic IWC 30120 caliber with day indication. The IW355701 reference is part of the GST collection characterized by robustness and water resistance.

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