IWC · GST Aquatimer

Strap for Aquatimer Perpetual Calendar Digital Date-Month Aquaman and the Lost Kingdom / Red

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 diameter49 mm
ReferenceIW3794-05 (aka: IW379405)
FamilyGST Aquatimer
MovementIWC caliber 89802 hours, minutes, small seconds | big date, leap year, month, perpetual calendar, date | Chronograph, Flyback
Year2023
CaseTitanium, Ceratanium

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 IW3794-05 (aka: IW379405)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The GST Aquatimer IW3794-05 (aka: IW379405), seen from the bench

The IWC GST Aquatimer IW3794-05 is a professional diving watch featuring a 49mm titanium and Ceratanium case with a 20mm lug width. It houses the sophisticated IWC caliber 89802 automatic movement, equipped with a perpetual calendar, large date display, flyback chronograph, and month and leap year indication. The watch offers 300 meters of water resistance and exemplifies IWC's engineering heritage combined with technical innovation from the 2000s.

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