It is indeed a very special design, of course from the purely technical point-of-view (new solution of the case, caseback fitted at the lugs), and because of its special aesthetics: - not only the unique profile, also - sharply cut curves and edges of the case, - the special JLC "paper" dial finish,
for the minute repeater (I suppose it has a function despite the JLC attachement of gongs to the front crystal), and tuning up this acoustics is a real kabala, therefore I would not dare to be too critical as far as the case is concerned, I am sure that the lugs could have been designed in much more
in case that something needs to be replaced, not to be limited to just a "generic overhaul". (Minimum, the two mainsprings should be routinely replaced.) Richemont service is then an obvious option. I had my JLC serviced by a JLC trained local independent who used to receive JLC parts. Last year, Ri