IWC · GST Aquatimer
Strap for Aquatimer Automatic Ocean 2000 Titanium / Black / Rubber
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
20mm
Lug width20 mm
Case diameter42 mm
ReferenceIW3291-01 (aka: IW329101)
FamilyGST Aquatimer
MovementIWC caliber 30120
Hours, Minutes, Seconds | Date
CaseTitanium
Straps for the GST Aquatimer IW3291-01 (aka: IW329101)
Selected for the 20 mm lug width · workshop selection
Green Rubberized Alligator Strap with Ecru Tribal Stitching€185
Novonappa Black Strap — IWC Pilot Style€149
Black Alligator Strap with Light Blue Edges€210
Black Alligator Strap with White Edges€210
Millenium Cognac Alligator Strap€270
The GST Aquatimer IW3291-01 (aka: IW329101), seen from the bench
The IWC GST Aquatimer IW3291-01 is a professional dive chronograph from the late 1990s featuring a 42mm titanium case with an internal bezel system. It houses the automatic IWC 30120 calibre with hour, minute, second and date functions, water-resistant to 300 meters. The 20mm lug width accommodates rubber straps and the unidirectional rotating bezel enables decompression calculations. This tool watch represents pure functionality within the GST (Gruppo Speciale Titanio) family.
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