The 666 was IWC's first Ingenieur model. With its Farraday cage protecting the movement and soft iron dial, it was designed to withstand magnetic fields up to 80.000 A/m.

This reference 666AD has a stainless steel case and a black dial. It is powered by caliber 8521.

The IWC Portofino reference IW2010-01 has a thin case made of yellow gold, which houses its hand-wound caliber 849 Jaeger-LeCoultre movement. It was available from approximately 1993 to 2003.

The IWC Ingenieur 3224-04 is a limited edition of 1000 pieces with green details, built on the same base as the earlier (2013) 3224-01 (100 pieces) and 3224-02 (100 pieces). The case is case is made of carbon with details in ceramic and titanium. The carbon fiber dial fits the theme. The Ingenieur Automatic Carbon Performance is powered by the self-winding caliber 80110, which for this watch has a piston-themed rotor.

As a tribute to its namesake, the designers of the Ingenieur Automatic AMG Black Series Ceramic have set off the colour black at its elegant best. Some surfaces have a high-gloss, piano lacquer-like finish, others are silky matte. This intriguing interplay makes the timepiece an attractive eye-catcher. Inspired by AMG?™s ceramic disc brakes, the case is made of zirconium oxide.

The ref. IW3227-03 is the titanium + soft strap version of the 2005 Ingenieur.

Original strap is ref. IWA 18932, IWA 18934 (XS) or IWA 18933 (XL). These straps also fit the IW 3227-01.

In 2008 IWC introduced its Vintage Collection, in celebration of the company's 150 year anniversary. Part of this collection was the Vintage Aquatimer 1967, with a design inspired by the original twin-crown 1967 Aquatimer.

Reference IW3231-01 has a stainless steel case and a black dial.