IWC · Ingenieur

Strap for Ingenieur Chronograph Racer Ardoise / Bracelet

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 diameter45 mm
ReferenceIW3785-08 (aka: 3785-08, IW378508)
FamilyIngenieur
MovementIWC caliber 89361 Hours, Minutes, Small Seconds | Date | Chronograph, Flyback
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Ingenieur IW3785-08 (aka: 3785-08, IW378508), seen from the bench

The IWC Ingenieur IW3785-08 is a modern evolution of the 1955 antimagetic watch icon, featuring a 45mm stainless steel case with a soft-iron Faraday cage protecting the movement from magnetic fields. Powered by the in-house IWC 89361 caliber with 42-hour power reserve, this chronograph flyback incorporates a date window and sub-dial seconds indicator. The 20mm lug width accommodates standard straps, while the screw-down caseback ensures water resistance to 100 meters.

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