1990s IWC Ingenieur Slim ref. 3521 Full Set

Founded in 1868, IWC is a Swiss company founded by Florentine Ariosto Jones, an American watchmaker motivated by the combination of Swiss knowledge and American technology. Today, IWC is recognized as one of the great names in the industry, renowned for its passion, innovative solutions and technical ingenuity.

Since then, IWC has succeeded in becoming one of the world’s top ten brands in the luxury watch segment, creating masterpieces of fine watchmaking, combining high precision and masculine design. It has produced some of the most desirable watches, such as the Portugieser, Portofino, Aquatimer, Ingenieur, De Luxe and pilot’s watches.

Launched in 1955, the reference 666 is the first big success of IWC thanks to its automatic Pellaton movement and its anti-magnetic protection (based on a soft iron cage). The watch name after the main objective of the manufacture, creating a watch for engineers. Often referred to and described as its cousins, the famous Milgauss by Rolex and the Railmaster by Omega, the IWC Ingenieur is resistant to water, dust and magnetic fields.

In the mid-1980s, IWC redesigned the model based on the drawings of the brilliant Gérald Genta, integrating an extra-thin movement. This feat will bring the Ingenieur line back to center stage while maintaining the primary objective of making a high-performance, assertive and comfortable watch for engineers.

This exact reference 3521 is an upgrade of reference 3506 that keeps the same spirit. Inside the 34 mm tonneau case, the attractive white dial gives the watch a strong identity, different from that of its cousin and its black “Graph paper” dial. It brings a more modern, wearable touch to the wrist thanks to the contrast of the dial and the yellow-gold colors of the hands and indexes.

This piece is animated by the automatic caliber JLC 889/2 powered by a platinum rotor.

The watch comes full set with its papers, box and its original signed bracelet in stainless steel.


YearCirca 1990
Case materielStainless steel

CaseTop condition
BraceletStainless steel
AccessoriesBox & Paper


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