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Introduced in 1955 alongside horological titans like the Rolex Milgauss and the Omega Railmaster, the first-generation IWC Ingenieur Reference 666AD represents the pinnacle of mid-century technical watchmaking. Originally engineered specifically for scientists, doctors, and engineers, this pioneering tool watch was built to withstand the strong magnetic fields found in modern laboratories and industrial environments.
Beneath its elegant exterior lies a highly sophisticated defense system: an inner soft-iron core that forms a Faraday cage, shielding the movement from magnetic forces. This early execution features the historically accurate baton hands and a mesmerizing sunburst dial with tritium luminous plots. Powering this masterpiece is the legendary in-house Calibre 8521/8531, featuring the famous Pellaton winding system designed by Albert Pellaton. Celebrated for its bidirectional efficiency, the movement quite literally springs to life at the slightest movement of the wrist. Paired with a premium, new Fluco strap, this is an extraordinary piece of engineering history ready for the modern wrist.
IWC Ingenieur | First Generation | ref. 666AD from 1955
BRAND: IWC
MODEL: Ingenieur (First Generation)
REFERENCE: 666AD
YEAR: 1955
MOVEMENT: Automatic In-House Calibre 8531 (Pellaton System)
CASE DIMENSIONS: 36mm x 45.5mm (Thickness: 13mm)
CASE MATERIAL: Stainless Steel with Inner Soft-Iron Antimagnetic Cage
GLASS: Plexiglass / Acrylic
STRAP: New High Quality Fluco Leather Strap in green (18mm Lug Width)
CLASP: Steel Buckle
BOX & PAPERS: No
TAX: Differential taxation according to §24 UStG
MOVEMENT: In-house Calibre 8531 featuring the iconic Pellaton automatic winding mechanism. Fully checked, running smoothly, and winding with exceptional responsiveness.
DIAL: Original sunburst dial in beautiful vintage condition. The tritium lume plots have aged gracefully, perfectly complementing the overall aesthetic.
GLASS: Original frame-mounted acrylic plastic glass, preserved in great condition.
HANDS: Original early-version baton hands matching the initial production era of this reference.
CASE: Stainless steel case measuring a contemporary 36mm. The case retains strong lines, though the caseback exhibits some deeper scratches resulting from an unprofessional opening tool in its past.
CROWN: Period-correct original steel crown. Historically accurate for this very early 1955 production run, it correctly does not yet feature the later IWC fish marking.
