Interesting is that while the Jaeger-LeCoultre Mk 11 were the precursor of the Geophysic, the IWC Mk 11 can be seen as the precursor of the Ingenieur! Jaeger-LeCoultre Mk 11 – IWC Mk 11 Yes, that must be the IWC Mk 11 they are referring to…! has been issuing its pilots and navigators with International watches for years”. Which explains how the specification in this ad from early 1960’s have the same 1000 rating but in Gauss! IWC ad early 1960s – 666 Ingenieur specifications I am no physicist… But if you read Orested Wikipedia the simple explanation is: In a vacuum, if the magnetizing field strength is 1 Oe, then the magnetic field density is 1 G. 1956 Swiss Fair Exhibitors Article – IWC 666 Ingenieur The Oersted is a unit of the H-field while Gauss is a unit of the B-field. Unfortunately in French, but as you can see they are talking about Oersteds and not Gauss which often is mentioned when it comes to Antimagnetic watches… Here is a scan of the presentation of the case and movement, 1956 Swiss Fair Exhibitors Article. Personally I favour the original Ingenieur 666… IWC Ingenieur – 666 AD in Gold A true classic model of the International Watch Company!įrom the very first reference 666 up until today, the Ingenieur have been created in many shapes, materials and movements… A model that has been in the IWC collection for many years. Earlier this wee I posted about Anitmagentic watches and the “big five”…
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