Just got this one in, spotted it in a mixed lot at auction. Needs a new glass now. And just in case anyone has missed it and is interested in Helvetia here's a link to my site! https://www.helvetiahistory.co.uk/ Thanks. Carl.
Hi Mitka, I've seen 5 or 6 of them now all with slightly different dial/hand combinations and all with a 1948 hallmark apart from one, which may be the one you picked up, which was just on ebay with a 1947 hallmark. They also all have the 800D movement, with a variation of the Helvetia shock resistance, which I've only seen in a couple of other watches.