After careful examination I found something that looks like very tiny triangles on one of the lugs and there's 'i' under balance wheel. So it looks like they come from one set.
So maybe the story is different - it was regular Viceroy with 11i but someone broke the crystal (now not original) and damaged dial and hands. So the watchmaker changed it with "older" ridged dial version with hour and minute hand, adding first matching chrono second available and that's it. Sounds reasonable?
What do you suggest? bring it back to Viceroy shape or leaving like this enjoying relatively rare dial?
Wasyl