Hi,
Firstly, if the watch does not have the Ingenieur logo on the dial it most
probably is not an Inge. An Inge is worth much more than the other IWC
watches, so I don't think anyone would remove this marking. It can be a nice
watch anyway, but I would not pay the price of an Ingenieur to a seller who
claims it is one, but with the wrong dial.
One way to be sure is to request detailed pictures of the dial, the back, the
movement and the inside of the back and post them here. On this forum there
are several experts who know the details that shows that it is a true Inge. To
avoid helping the forgers we don't describe these details.
If the seller does not want to give you pictures, walk away. Honest and
serious sellers will help, others not. Unfortunately the dishonest sellers are
only too common.
Best regards,
Henrik