Half a century after its debut, IWC Schaffhausen’s Ingenieur SL returns to the spotlight through two anniversary editions and the personal recollections of Gerald Genta’s family
In 1976, IWC Schaffhausen introduced a watch that would take decades to find its place in horological history. The Ingenieur SL Reference 1832, designed by Gérald Genta, was not an immediate commercial success. Yet 50 years later, its distinctive vision has become one of the defining chapters in the history of the Ingenieur – and a foundation for the collection as it exists today.
Genta created the Ingenieur SL during a period when luxury sports watches in stainless steel with integrated bracelets were emerging as a new category. Rather than simply adapting the established language of watchmaking to this new format, however, the Geneva-based artist and designer approached the watch as a complete object. Its case, integrated bracelet and clasp were conceived as a continuous sculptural form, while the structured dial and bezel secured by five functional screws gave it a distinctly architectural character.
Only 598 examples of the Ingenieur SL were produced between 1976 and 1983. Its initial reception would eventually give way to renewed interest among collectors, transforming a watch that had once struggled commercially into one of IWC’s most sought-after designs.
Understanding that trajectory also means understanding Genta himself. In a new interview released by IWC, his wife and business partner Evelyne Genta and daughter Alexia Genta offer an unusually personal perspective on the designer and the creative principles behind his work. As co-founders of the Gérald Genta Heritage Association, they have also remained closely involved with the Ingenieur’s modern evolution.
“The Ingenieur began life as a technical watch, but it was transformed through the creative eye of an artist,” says Evelyne Genta. “Gérald would be incredibly happy to see how IWC has respected and preserved the DNA of his original design.”
Their recollections reveal an approach to design that extended well beyond watchmaking. Gérald Genta, they explain, never truly saw himself simply as a watch designer, but as an artist who happened to find his medium in watches. His pursuit of beauty, harmony and proportion could be seen even in everyday details, from selecting clothes to arranging breakfast items on a plate. In the Ingenieur, that instinct resulted in a watch intended to be experienced as a single, harmonious whole.
That philosophy has remained central to the Ingenieur’s contemporary identity. When IWC relaunched the collection in 2023, Evelyne and Alexia Genta were involved from its earliest stages, reviewing prototypes of the Ingenieur Automatic 40 before supporting its presentation at Watches and Wonders Geneva. Their involvement continued as IWC expanded the collection in 2026, including with its first Ingenieur equipped with a tourbillon.
Now, the 50th anniversary of the original Ingenieur SL provides another opportunity to revisit Genta’s design while moving it forward. The Ingenieur Automatic 40 50th Anniversary (Ref. IW328910) and Ingenieur Automatic 35 50th Anniversary (Ref. IW324909) are each limited to 1,150 pieces. Both feature brushed silver-plated dials inspired by a rare variant of the original Ingenieur SL – a less familiar detail of the 1970s design than its better-known structured dial.
The anniversary treatment is deliberately restrained. Rhodium-plated hands and metal hour markers are filled with Super-LumiNova, while the familiar lightning bolt beneath the Ingenieur name has been replaced by a discreet “50.” Both watches retain the characteristic five-screw bezel and integrated stainless-steel bracelet that define the collection, with satin finishing and polished surfaces providing subtle differences in texture.
At 40mm, the larger model is powered by IWC-manufactured Caliber 32111, offering a 120-hour power reserve and a soft-iron inner case for protection against magnetic fields – a practical feature that echoes the engineering-minded character of the original. The 35mm version houses Caliber 47110 and offers a 42-hour power reserve, with a sapphire caseback revealing its circular graining, Geneva stripes and gold-plated oscillating weight.
The Ingenieur has since expanded into a broad collection spanning different sizes, materials and complications. Yet its 50th anniversary returns to a simple proposition: that a strong design does not necessarily reveal its full significance at the moment it appears. Five decades on, Genta’s original vision remains recognizable not because it has been preserved unchanged, but because its essential ideas continue to provide IWC with something to build upon.