IWC · GST Aquatimer

Strap for Aquatimer Automatic Stainless Steel / Black / Rubber

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 diameter42 mm
ReferenceIW3548-07 (aka: 3548-07, IW354807)
FamilyGST Aquatimer
MovementIWC caliber 30110 hours, minutes, seconds | date
Year2004 - 2009
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 IW3548-07 (aka: 3548-07, IW354807)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The GST Aquatimer IW3548-07 (aka: 3548-07, IW354807), seen from the bench

The IWC GST Aquatimer IW3548-07 is a technical diving watch from the 1990s featuring a 42mm stainless steel case with automatic IWC 30110 movement. It has a 22mm lug width, screw-down crown at 4 o'clock, and rotating inner bezel for dive time adjustments. Water-resistant to 300 metres, this monolithic construction integrates case, lugs, and bracelet as a single structural unit designed for extreme underwater environments.

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