IWC · GST Aquatimer
Strap for GST Chronograph MecaQuartz 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 diameter34 mm
ReferenceIW3727-03
FamilyGST Aquatimer
MovementJaeger-LeCoultre caliber 631
Hours, Minutes, Small Seconds | Date | Chronograph
CaseStainless Steel
Straps for the GST Aquatimer IW3727-03
Selected for the 21 mm lug width · workshop selection
Novonappa Black Strap — IWC Pilot Style€149
Red Alligator Strap Water Resistant€270
Millenium Cognac Alligator Strap€270
Matte Blue Alligator Strap€270
Millennium Green Alligator Strap€270
The GST Aquatimer IW3727-03, seen from the bench
The GST Aquatimer represents IWC's dive line from the 1990s, equipped with the Jaeger-LeCoultre caliber 631 movement. It offers hours, minutes, small seconds, date and chronograph functions for sports and dive use. The IW3727-03 reference maintains the technical characteristics typical of the GST collection dedicated to water sports.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only