thanks for your feedback, much appreciated.
we also knew about single rlx lefties, 'usual' models such as sub and s.dweller.
in the end, it was the rolex chrono, that spurred the ambition. with the chrono-module / sec. @ 3 and a lot of skills and passion - many thanks again D.!!! - a unique daytona came out.
the watch is with a good friend now, but as far as i remember the subdial @ 6 is faux, other than that chrono is working fine.
rgds, lolex