This IWC Ingenieur 666 from 1955 is an exceptional collector's piece – crafted in 18k yellow gold and preserved in museum condition. The case shows full proportions with sharp edges and gives the impression of having just left the Schaffhausen factory.
The original, silver-colored pie-pan dial is a true highlight. The watch has been stored unworn for decades, leading to a fascinating aging phenomenon: the radium lume from the Dauphine hands has subtly burned into the dial, leaving delicate traces that now resemble sunrays – an authentic testimony of originality.
The Ingenieur was created for engineers and scientists, as a functional yet elegant wristwatch with the ambition to combine precision and robustness. Most examples were produced in stainless steel – gold versions such as this one are a true rarity.
Inside ticks the proven, anti-magnetic automatic caliber 8521, equipped with Albert Pellaton’s innovative winding system and protected by a solid soft-iron cap.
This "Safe Queen" embodies the spirit of the 1950s at its finest – a collector's piece that unites originality, rarity and impressive condition.
Condition Report
Dial: original silver-colored dial – authentic patina – every single lume plot is 100% intact – Dauphine hands – signed "International Watch Co. Schaffhausen Ingenieur Swiss".
Case: preserved like new – 18k yellow gold – unpolished – sharp lugs – hardly any signs of wear – 2 deep gold hallmarks (case side and behind the lug) – deep serial number between the lugs – correct engravings on the caseback.
Movement: Automatic caliber IWC 8521 – timegrapher values: rate deviation: +21s/day, amplitude: 216, beat error: 0.0.
Case number: 1356xxx
Movement number: 1334xxx
Int.Exe.: 83920