Americans don't like to admit it, but the Europeans were way ahead of us in DA revolver development in the 19th century. While the ammunition was relatively weak (compared to .45 Colt or .44-40), the guns were well designed, well made, and much better suited to mililtary service than a Colt SAA or S&W Schofield.
Compare the time and effort required to clean or replace a part in that gun to the same job in a Colt or S&W. And the Swiss were not the only nation to adopt that kind of system; the Swedes, Russians, and French used similar revolvers. The Russian Nagant revolver, much disparaged here, was actually very much in line with contemporary military thinking in sidearm design, though no other country adopted its unique gas seal design.