Help Please -- Idenify an Old IWC

And acquaintance inherited this old wristwatch with a dial marked International Watch Company.

I'd be grateful for any information anyone could provide.

The serial number on the movement can identify the calibre and when the watch was produced using the following program;

Date Your IWC

If you do not know how to open the case back without causing damage PLEASE take it to a watch maker and have him open it for you. Record any markings you see on the movement.

The number show on the case does seem too low for the style of watch.

A search of the Vintage Catalog Project may provide similar images but it is really the movement number that is needed.

Cheers from the cellar

Thank you. I'll pass the information on.