Originally sold on April 19th 1881 and still working happily today, but, as with the majority of pocket watches finding itself in well-earned retirement.
A five-piece hard enamel dial
The brand name was most likely added, after the dial was made on the moonphase section, but printed, and has disapeared during its life. The dial is fixed to the movement with the metal skirt pushed onto its circumference.
Holding the subsidiary dials
The four small parts of the dial were carefully placed onto the mother section and heated until lead ran into the beveled edges of the disc and dial, holding them all together. Then the dial maker will have taken his file and removed the surplus of metal to allow the dial to sit flat on the QP module.
(The dial was enamelled on both sides to assure an even tension.)
A full deconstruction of this Patek Philippe pocket watch Perpetual Calendar, Moonphase, Minute-repeater, full hunter pocket watch (1880) can be seen here.
The outer case back open…
…and the inner dust case back open…