IWC · GST Aquatimer
Strap for GST Perpetual Calendar Stainless Steel / Black / German
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 diameter43 mm
ReferenceIW3756-13
FamilyGST Aquatimer
MovementIWC caliber 79261 hours, minutes, small seconds | date, day, month, perpetual calendar, year indicator | Chronograph
Year2001 - 2004
CaseStainless Steel
Straps for the GST Aquatimer IW3756-13
Selected for the 21 mm lug width · workshop selection
Matte Black Alligator Strap — Minimal Stitching€149
Millenium Cognac Alligator Strap€195
Matte Blue Alligator Strap€195
Grey Hammered Leather Strap with Ecru Stitching€98
Hammered Calfskin Strap Light Blue€98
The GST Aquatimer IW3756-13, seen from the bench
The IWC GST Aquatimer reference IW3756-13 combines underwater functions with a perpetual calendar and chronograph. The movement is the IWC Caliber 79261 which manages hours, minutes, small seconds, full date, year indication and chronograph function. The watch integrates the characteristics of a diving timepiece and those of a high-watchmaking complication in a single solution.
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