Hey Forum,
I am the proud owner of an IWC Ingenieur Ref. 1832. Recently the watch was serviced and the watchmaker told me that everything about the watch is from back in the days and original. Now I there are 3 things that bothers me. The crown looks different from the ones I saw online, the back case does not have the reference number stamped inside and the movement isn’t an 8541ES. It’s the 8541B.
Can you help me out with cleaning the doubts please?
Thank you so much!


