IWC Ingenieur 666D

The story of the legendary IWC Ingenieur begins in 1954, when the brand introduced the first model of this iconic anti-magnetic wristwatch: the reference 666. Designed for engineers and professionals exposed to magnetic fields, it offered resistance more than 16 times higher than the Swiss standard for antimagnetic watches — a true technical achievement of its era.

The IWC Ingenieur Ref. 666D, introduced shortly after the original 666A (without date), features a refined design and the addition of a date complication, enhancing both practicality and symmetry on the dial.

Its 37mm stainless steel case preserves the balanced proportions and robust elegance that define mid-century IWC design. The sunburst silver dial, paired with radium lume and baton hour markers, exudes timeless sophistication and character.

Powered by the reliable IWC automatic caliber 8531, this movement is renowned for its precision, smooth winding system, and durability — a masterpiece of 1960s horology.

This particular example is offered in excellent vintage condition, showing light signs of age and preservation consistent with careful use. The watch is fitted with a period-correct Gay Frères beads-of-rice bracelet, completing its authentic and elegant presence on the wrist.

A true collector’s piece — pure, understated, and historically important.