IWC · Ingenieur
Strap for Ingenieur Mecaquartz Chronograph Alarm Stainless Steel / Black / 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
ReferenceIW3805-01 (aka: IW380501)
FamilyIngenieur
MovementJaeger-LeCoultre caliber 633 hours, minutes, small seconds | date | Chronograph | alarm
Year1991 - 2000
CaseStainless Steel
The Ingenieur IW3805-01 (aka: IW380501), seen from the bench
The IWC Ingenieur IW3805-01, designed by Gérald Genta in 1976, features a 34mm stainless steel case with integrated magnetic protection and a Jaeger-LeCoultre caliber 633 automatic movement. This model includes chronograph and alarm functions, 120-meter water resistance, and 20mm lugs for strap compatibility. The brushed steel case, distinctive five-hole bezel, and tool-watch aesthetic exemplify Swiss-German engineering excellence.
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