IWC · GST Aquatimer

Strap for GST Chronograph Automatic Stainless Steel / Black / German

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

22mm

22 mm straps All IWC

Lug width22 mm

Case diameter40 mm

ReferenceIW3707-06 (aka: IW370706)

FamilyGST Aquatimer

MovementIWC caliber 7922 hours, minutes, small seconds | date, day | Chronograph

Year1999 - 2003

CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

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Straps for the GST Aquatimer IW3707-06 (aka: IW370706)

Selected for the 22 mm lug width · workshop selection

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The GST Aquatimer IW3707-06 (aka: IW370706), seen from the bench

The IWC GST Aquatimer IW3707-06, a German dive chronograph from the 1990s, features a robust stainless steel case of 39.70mm diameter and a 22mm lug width. Powered by the manual-wound IWC 7922 calibre with chronograph, date, and day functions, this model combines technical precision with formal elegance. The rotating internal bezel with dive markings and well-proportioned chronograph registers exemplify IWC's engineering philosophy applied with aesthetic rigour.

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