Vintage Iwc Ingenieur Calendar Automatic Watch Ref.666 Cal.c.8531 -1964-

IWC, collector's model Ingenieur in Staibrite steel ref.666 AD equipped with caliber C.8531 Pellaton central seconds and date functions at 3 o'clock, self-winding movement. Beautifully patinated tritium dial stamped International Watch Co, applied stick indexes, dauphine hands, solid 3-piece screw-down case, anti-magnetic soft iron cape. Dimensions: 36.5 mm (38.5 mm with crown) x 43 mm (handles included), the mechanism and the box are signed and numbered. rare item in excellent condition and in perfect working order, revised and checked in our workshop. Service: 08/2023, 2 years warranty.