IWC · Ingenieur

Strap for Ingenieur SL Automatic Stainless Steel / Yellow Gold / White / Bracelet

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

21mm
Lug width21 mm
Case diameter34 mm
ReferenceIW3505-06 (aka: IW350506)
FamilyIngenieur
MovementIWC caliber 375 hours, minutes, seconds | date
Year1983 - 1990
CaseYellow Gold, Stainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Ingenieur IW3505-06 (aka: IW350506), seen from the bench

The IWC Ingenieur IW3505-06, launched in 1976 and designed by Gérald Genta, is a two-tone stainless steel and yellow gold luxury antimagnetic timepiece. The 34mm case houses the IWC calibre 375 manual-wind movement with hours, minutes, seconds and date window at 3 o'clock. Protected by an integral Faraday cage against magnetic fields and featuring a recessed crown, the watch combines 18k yellow gold bezels and caseback with a satin-finished 316L steel center case. The 21mm lug width is integral to the model's proportions and comfort on the wrist.

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