IWC INGENIEUR REF. 666AD International Watch Co., Schaffhausen, 'Ingenieur,' Ref. 666AD, case No. 1438807. Made circa 1955. Unusual and rare, water-resistant, center seconds, anti-magnetic, self-winding 18k yellow gold wristwatch with 'Pellaton' system, date and an 18k yellow gold detachable Gay Freres bracelet dated 3.58. Accompanied by an overhaul invoice from Les Ambassadeurs dated August 2012. | Important Modern & Vintage Timepieces | Geneve, 11th November 2012
IWC INGENIEUR REF. 666AD International Watch Co., Schaffhausen, ?Ingenieur,? Ref. 666AD, case No. 1438807. Made circa 1955. Unusual and rare, water-resistant, center seconds, anti-magnetic, self-winding 18k yellow gold wristwatch with ?Pellaton? system, date and an 18k yellow gold detachable Gay Freres bracelet dated 3.58. Accompanied by an overhaul invoice from Les Ambassadeurs dated August 2012., CHF 10,000 - 15,000 USD 11,000 - 16,000 / EUR 8,500 - 12,000Sold: CHF 12,500 C. Three-body, polished and brushed, antimagnetic cap to protect the movement against magnetic fi elds, screwed-down case-back, fl at bezel, concave lugs. D. Silver with applied gold Arabic and dart indexes, outer minute division, date aperture. Luminous gold dauphine hands. M. Cal. 8521, rhodium-plated, fausses cotes decoration, 21 jewels, straight-line lever escapement, monometallic balance, shock absorber, self-compensating blued steel Breguet balance spring, micrometer regulator, hacking seconds. Dial, case and movement signed. Diam. 36 mm. Thickness 13 mm. Approx. overall length 180 mm.
