Spoke through DM with the owner on IG - seems like a real enthusiast. Some of the other pieces in his collection are stunning, and this is not the only unique RM in his stable.
The data nerd in me wishes to know the number of one-off pieces made for clients each year. At this point I feel confident saying over half of the RMs produced in a given year are spoken for prior to leaving the manufacture - but the raw numbers of each reference produced would be quite interesting to know.
In any case, enjoyable to see these watches even for the briefest of glimpses before the shade is once again drawn.
Colton