Polished case, bezel set with diamonds, refined lugs, applied hour markers and JL logo, eggshell dial, hands with a double polished and satin finish… the Master Ultra Thin Perpetual Calendar revisits the collection’s emblematic aesthetic codes with sophisticated elegance. On the eggshell dial, enhanced by the shine of the 60 brilliant-cut diamonds on the bezel, every function has its place, decorated with finishes in the purest tradition of the watchmaker’s art. Equipped with in-house Calibre 868, visible under the sapphire crystal case-back, this complication watch promises 70 hours of power reserve.