Lot 71

IWC Ingenieur "Grey Dial"

ResultPassed
EstimateCHF 6'000
  • Buyer’s premium 24%
CaseStainless steel housing with soft iron magnetic shield
DialMatte grey dial with applied line indices and tritium luminous dots, dauphine hands, date at 3 o'clock, signed "International Watch Co., Ingenieur" (replaced)
MovementRhodium-plated automatic movement with snailing finish, Pellaton winding and Breguet hairspring
Cal.8531
Ref.666AD
Movement No.1724238
Case No.1872549
D=35mm
Yearca.1963
Case:Very good, small signs of use, repolished edges preserved
Dial:Good; According to IWC it should be white (not a grey) dial
Movement:Very good; Movement was replaced by IWC in the 1970s
Amplitude (Dial on top/Lift angle 52):290°
Accuracy (Dial on top):+ 15 s/d