Just for comparison - Rolex are reputed to make about a million watches a year and to hold 30 percent of the luxury watch market - so market size, about 3.5 million sales per year.
I would hazard that there are a lot more luxury watch owners than audiophiles.
I've posted here several times about the fact that the audiophile demographic is very imbalanced, gender-wise and shrinking.
But the company demographic is ageing rapidly too so it my decline as the customer based does too.