Closeup pics of the dial, casing, movement would help, if u could share them here on this forum.
The case number and movement number will also assist greatly. For pocket watches, to see the movement number you would need to open up the back of the pocket watch, which a good watchmaker can do for you without harming the timepiece.
Erstwhile, these below can assist for vintage / older watches:
www.moeb.ch/dyIWC/ --DateYourIWC by case and movement number (I prefer the applet version at the bottom), created by Marco Schönenberger
Your (case) serial number dates it to 1945, so if u visit www.iwcforum.com/Vintage_Catalogs.html
The Vintage Catalogs may contain your target vintage watch and provide details therein.
Picture Uploading - A Snappy Guide
Step One: most people sign up for a free host at www.photobucket.com
Step Two: Upload your pic, preferably in 640x480 size
Step Three: Look for this box below and click on the URL beside IMG Code, and paste it directly in ‘Your Comment’ box when writing a new comment in the forum.

Step Four: check that you have successfully uploaded the pic (like I have done with the image directly above :) by using the preview button i.e. clicking on the ‘tick’, just above the ‘Your Comment’ box. And you’re done !