This was in a job lot of watches I picked up today. Never heard of a helium valve before. Is the watch any good, or fit for the bin? I can post pics of the other watches that came in the lot, if there's any interest? ( I've never heard of them).
That looks very similar to some chinese designs that are available around 100 quid - I suspect the (chinese) factory has just been commissioned to add a logo to the dial as a low-cost memento sort of thing.