IWC · Ingenieur
Strap for Ingenieur Automatic Laureus
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 diameter40 mm
ReferenceIW3239-09 (aka: 3239-09, IW323909)
FamilyIngenieur
MovementIWC caliber 30110 hours, minutes, seconds | date
Year2015
CaseStainless Steel
The Ingenieur IW3239-09 (aka: 3239-09, IW323909), seen from the bench
The IWC Ingenieur IW3239-09 is a sports chronograph evolved from a 1976 design by Gérald Genta, embodying IWC's engineering philosophy. It features a 40mm stainless steel antimagetic case with an austere dial, screw crown, and transparent caseback revealing the automatic IWC caliber 30110 movement. The proprietary 20mm lug width reflects Genta's harmonic design proportions, ensuring visual balance and ergonomic comfort without interchangeability with 19mm or 21mm straps.
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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