LAMARCHE Yellow gold 750 ‰ and silver 800 ‰ collar watch set in circumference with rose-cut diamonds on both sides, recto verso. White enamel dial with Roman numerals, hand-wound mechanical movement with key. Yellow gold dust cover engraved: LAMARCHE, supplier to the British Embassy, 25 rue de la paix Paris. The back of the watch is adorned with a beautiful blood jasper plaque. The bezel and case sides are beautifully chased. 19th century work PB. 17,4 g