IWC · Ingenieur

Strap for Ingenieur Perpetual Calendar Digital Date-Month Titanium / Red Gold

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 diameter46 mm
ReferenceIW3792-03 (aka: IW379203)
FamilyIngenieur
MovementIWC caliber 89802 hours, minutes, small seconds | big date, leap year, month, perpetual calendar, date | Chronograph, Flyback
Year2015
CaseTitanium, Red Gold

Spring bar

Swiss Standard universal spring bars

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

The Ingenieur IW3792-03 (aka: IW379203), seen from the bench

The IWC Ingenieur IW3792-03 is a contemporary evolution of the 1955 sports watch lineage, built for resistance to magnetic fields. The 46mm titanium case with red gold inserts houses the IWC 89802 caliber, featuring chronograph, flyback function, and perpetual calendar complication tracking date, month, and year until 2100. The 20mm lug width ensures robust attachment and visual proportion to the oversized case, combining titanium's lightweight and magnetic resistance with red gold structural accents.

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