Thanks for the article. It says the movement is caliber 80111.
I searched weeber and found 2 other series using this caliber. For those models, nowhere did it mention it has protection against magnetic fields.
One of them, looks like a related model and did not have the soft iron inner core: www.weeber.biz/IWC/Workbook/2007/3234.pdf. My watch's reference is IW323403, so i guessed that model being IW3234 will have its characteristics applying to my watch as well.
I searched another ingenieur model which specifically listed protection against magnatic field as a characteristic.
Succession of the Ingenieur legend from 1955 / 80110 calibre IWCmanufactured
mechanical movement / Shock-absorbing system: springmounted
rotor / Maximum protection against magnetic fields – up to
80,000 A/m/ The legendary IWC winding mechanism (Pellaton system),
characterized by its efficiency and durability / Unmistakable, distinctive
design
Am i right to conclude that my ingenieur does not have the magnatic protection? Otherwise, the workbook would have specify it as a characteristic in the related model. (ceramic ingenieur)
What is the difference between 80111 and 80110? Is it just some subtle differences?