IWC
Ingenieur
Ref. 666
The IWC Ingenieur Ref. 666 is a classic tool watch known for its robust stainless steel case, anti-magnetic Faraday cage, and distinctive 'Pellaton' automatic winding system. Introduced in the mid-20th century, it holds cult status among collectors for its timeless design and early engineering innovations. The model often features a silver or black dial with dauphine hands and was produced in both no-date and date versions.
crystalPlexiglass
braceletLeather strap or metal bracelet (originally Gay Frères 'beads-of-rice' bracelet)
movementCal. 852 (self-winding, Pellaton winding system, 21 jewels, 19,800 vph, integrated shock absorber)
functionsHours, minutes, central seconds (date window on 'AD' variants)
dial colorBlack or silver (with golden indexes and dauphine-style hands)
case diameter36.5
case materialStainless steel
water resistance10 ATM
year1954-1959
A registered IWC 666 carries a permanent RGATT passport: origin, history and owners, verifiable by anyone, and a documented history makes a watch easier to sell.