IWC · Ingenieur
Strap for Ingenieur SL Automatic Stainless Steel / Yellow Gold / Champagne / 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 diameter34 mm
ReferenceIW3505-09 (aka: IW350509)
FamilyIngenieur
MovementIWC caliber 375 hours, minutes, seconds | date
Year1983 - 1990
CaseYellow Gold, Stainless Steel
The Ingenieur IW3505-09 (aka: IW350509), seen from the bench
The Ingenieur represents the antimagnetic collection of IWC, developed to withstand magnetic fields in industrial environments. The reference IW350509 is equipped with the IWC caliber 375 with indication of hours, minutes, seconds and date. The movement provides antimagnetic protection up to 80,000 A/m according to ISO standards.
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