1944 wartime production pocket watch research

I would like to present here a present form my mother to get some informations regarding history of this pocket watch. It is one out of 4 pocket watches form the inheritance form my mothers viennese stepfather.
Regarding my research with the serial numbers this watch has been produced in 1944. From old pictures in a photo album I know, that my mothers stepfather has served in the german army during WW2.
What do you think, pocket watches at that time were not a common civil watch-type used?
What do you think or know in general about this type of watch?

with best regards
Kliaber

Additional pictures at:
drive.google.com/folderview?id=1bOhAmHBlFbg8liBXIW9eoGtUy6pYU1Z8

A very nice and clean looking cal 67. The case and dial look to be in very good shape as well. Although the cal 67 was used in military watches, I don't see this as a mitalry-issue piece but others here may be able to offer more information. IWC used to offer an extract from the archives but I am not sure if this inforamtion is still available.

Thank you Ben for your estimation. Yes the movement is still working, even thougt I believe a professonal service will be the next step to recover original precision.

best regards
Reinhold

This is an IWC cal. 67 produced in 1944.
Almost certainly this particular watch has no military back ground.
Cal. 67 has been used in large numbers by the German Navy ( Kriegsmarine) during WW II as a precision deck watch on war ships and on submarines. However these had a military dial and stamped military marks on the back lid.
The demand by the army was larger than IWC could produce and some civil watches with a dial as shown on your watch were requested from civilians to use as deck watches as well. Although they kept their original civil dial they were rated by the Kriegsmarine for their precision and they got a military stamp on the back lid , often "Kl II"  ( second class).
Some of them lost this stamp after the war by polishing the back lid to get rid of the military markings.
Cal 67 was used also by the German Navy after the war ( untill the 1960ies) on their ships as a back up watch, if electronic time was lost on board by any cause.
Also these watches had military markings : "BUND" and Nato Stock Number.
Source : Konrad Knirim, German military watches.
Regards,
Adrian,
(alwaysiwc)

Thank you Adrian for your profound analysis! You are right, the cap on the back of the watch has no engravings nor has it any sings of polishing.
best regards
Reinhold

Reinhard, despite not being military it is and remains a very nice pocket watch.

You are correct of course in that it it can only benefit from a profesional service. Running the watch as is, with the oils in it probably very dried out and gunked up can only serve to harm that fine mechanical movement. Any competant TRUE watchmaker should be able to give it a lubrication service but no  one does it better than those Wizzards of Schaffhausen and if you opt to send this watch back to the manufactury in Schaffhausen for a so called “SPA SERVICE”, you wont regret it.

For that, you would need to take it into the boutique or another authorised iwc agent in Vienna.