South African Police?
I bought a 60's diver from Snogge in SC.. on the dial it has a mystery logo - a small circle with SAP written inside. It's positioned between the dial centre and 6 o'clock position - exactly where you'd find the T on military Subs, if that helps.
Anyone know what this means?
The South African Police did have a specialist diving unit in the 60s / 70s (don't know if they still have).
Regards,
Si
Here's a pic..
I thought I'd found a reference on Heuerville - but it was you.
The lettering does look similar. Interesting - and a good-looking watch.