Extremely rare French gold lever pocket watch Circa 1930

Gold open face with perpetual calendar and moon
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An 18 carat gold, very solid edition, signed and numbered, exquisite chronometer movement with lever escapement and wolf’s toothing, circa 1930-1932.
Bridge signed, original engine turned dial, perpetual calendar and moon, blued steel hands, excellent condition, extremely rare.
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Diameter: 57 mm   Weight: 144 g
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Signed:  L. Leroy & Cie  Paris
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According to our knowledge there is only one comparable watch sold to Monsieur le comte Michel de Pierredon on April 11, 1932 for 11.000 Franc.
This deck watch was only made for a short period of time from 1930 to 1932.