French gold hunting cased complicated lever Circa 1890

Rose gold repeating chronograph with perpetual calendar and moon phases 
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A very fine and rare French 18 carat rose gold hunting cased minute repeating perpetual calendar keyless lever chronograph watch with moon phases and the royal cypher of Ferdinand I of Bulgaria, original certificate and box bearing the same cypher, circa 1890. Nickel finished lever movement, 36 jewels, bimetallic compensation balance, minute repeating on two steel hammers, glazed dust cover. Gold cuvette engraved with the inscription Chronomètre Répétition Minutes Quantième Perpétuel, Phases de Lune and a ribbon with attached orders. White enamel dial with Roman numerals, outer scale calibrated for 300 units, four subsidiary dials for month and leap year, day, date and constant seconds with moon phases and lunar calendar. Heavy case, engraved Royal cypher of King Ferdinand I of Bulgaria surmounted by a crown to the front, engraved initials to the back, repeating slide and chronograph button in the band. Case numbered, cuvette signed.
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Diameter: 55 mm
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Signed: Maison B. Haas Jeune Brevetée 5 Quai du Mont-Blanc Genève 104 Bd Sebastopol Paris
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This piece is formerly the property of Ferdinand I, King of Bulgaria.
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Ferdinand I of Bulgaria. Born in Vienna on 26 February 1861 as Ferdinand Maximilian Karl Leopold Maria of Saxe-Coburg and Gotha, the aristocrat was to become the ruler of Bulgaria from 1887 until 1918. Son of prince August of Saxe-Coburg (1818-1881) and his wife Clémentine of Orléons (1817-1907), he grew up in a cosmopolitan environment and moved in Austro-Hungarian high nobility circles. Serving as an officer in the Austro-Hungarian army, he was elected ‘Knyaz’ or Prince Regent by the Grand National Assembly of autonomous Bulgaria on 7 July 1887. His title changed to King or Tsar on 5 October 1908 when the country declared its independence from the Ottoman Empire.
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The marriage of Ferdinand I to Princess Marie Louise of Bourbon-Parma produced four children: Boris III (1894-1943), Kyril (1895-1945), Eudoxia (1898-1985) and Nadezhda (1899-1958). Following the death of his first wife after giving birth to their last child, Ferdinand I married Eleonore Reuss of Köstritz in 1908, the year in which he was crowned King of Bulgaria. He abdicated in 1918 to live in Coburg, Germany, the craddle of the Saxe-Coburg-Gotha dynasty, where he died in 1948.