Hello
I thought I would test the forums knowledge on the ScubaPro 500
I understand they were issued to the Norwegian Navy?
Does anyone have any idea about the markings that might be found on such a watch!
Do they look like this?

The rest of the watch is standard ScubaPro.

Ramsund is a Norwegian Naval base and the marking on the case back are older than the majority of the scratches.
The watch itself has led a hard life and is pretty banged up but they were a tool watch. The orange second hand has been bleached by the sun.
Any help appreciated.
John