French very fine pocket watch with jumping hours circa 1821

Half quarter repeating hunting cased pocket watch
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A very fine French 18 carat gold half quarter repeating hunting cased pocket watch with lever escapement and jumping hours, circa 1821. Manufactured in best movement quality “Garde Temps”. Sold on June 11th, 1821 to Count Panin for 4800 Francs, rebuyed by Breguet, entirely restored under the number 4931 and sold again to Monsieur Lacroix in Turin on May 16, 1831 for 4800 Francs.
Bridge movement, 1 hammer, 1 gong, early jewelled lever escapement, compensation balance with gold and platinum screws and is keywind. Half quarter repeater activated by pulling out a button in the pendant, turning it and then pressing it down again.
Two-tone engine turned silvered dial with auxiliary seconds at 4, blued steel hands, Roman numerals and a secret signature. Engine turned case with case maker’s punch mark MAB (M.A. Buffelard, the successor of Tavernier) and an additional concealed compartment with the portrait of a young nobleman.
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Diameter: 50 mm
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Weight: 120 g
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Signed: Abraham Louis Breguet et fils Paris
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Count Nikita Petrovich Panin (1770–1837) was a Russian diplomat, vice-chancellor, State Chancellor acting 6 October 1799 – 18 November 1800 and Foreign Minister of Russia. His uncle was Count Nikita Ivanovich Panin, an influential Russian statesman and political mentor to Catherine the Great for the first 18 years of her reign (1762-1780).
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Nikita P. Panin plotted the assassination of Paul I of Russia together with Count Peter Ludwig von der Pahlen and the Russo-Neapolitan Admiral José de Ribas. Ribas died before the assassination, which was actually carried out on 23 March 1801 by a band of dismissed officers headed by General Bennigsen, a Hanoverian in the Russian service and General Yashvil, a Georgian. The assassination brought Alexander I of Russia to the throne.