I have never seen or hear about one of these before. That is rather cool. Note the drilled lugs and date! (One for Ken?) it would be interesting to measure the thickness, looks to be a thin case which would help date it.
Roamer anfibio we’re issued to the South African and Rhodesian Armies in the 70s so this post dates them obviously.
I don’t think this is issued but it would be cool to find out a bit more about it. Is it a possible attempt at a new military contract. ZA were at war quite a bit in the 80 and we’re buying kit from all over the place.
South African Watch serial numbers were preceded with ZA
Rhodesian with RA (or possibly SFA)