Ca. Ø60mm, ca. 126g, 18K gold, case set on both sides with 2 rows of finest Oriental pearls, back with very fine enamel-paillon work on blue engine turned enamel, No.2483, master's mark GM and London Hallmarks 1792, extremely rare calibre with duplex escapement and centre seconds, signed and numbered, diamond endstone, original and absolutely rare enamel dial with ruby setting, pink gold hands, in excellent,pletely original condition, not restored, only small scratches in the enamel, intact. The watches with the probably original 'Male' key for the special winding square. The sister watch 2483 is described in detail and illustrated in ''The Majesty of the Chinese-Market Watch'' (page 138). It has a matching case, identical dial, identical hands, only a different 'paillon motif' on the back and is in the Museum of Art and History in Geneva. This watch is one of the rarest gold/enamel watches made for the Chinese market. We only know of these two watches with aparable ruby-set dial. It is further known that not only the finest enamel watch cases were made by thispany, but also decorative and ornamental objects, e.g. a sword with an enamelled handle, auctioned at Sotheby's (https:///go/Dl1).