Pink gold Watch no. 15605

Case: Pink gold, hunting, engraved all over, inner lids signed "B. Haas Jne & Ce., Brevetes, Geneve - Paris, 05" and "Chronometre, Remontoir perpetuel, Quantieme perpetuel, 15605", AP monogram and globe symbol or crest. Dial: Double dial, white enamel, Roman numerals, apertures for month, year [1937 currently indicated], moon age and phase, gold spade hands, second dial indicating day [in French] and date with central aperture displaying movement. Movement: Nickel, bi-metallic balance with blued steel balance spring with Breguet overcoil with polished steel kidney piece, winding by the cover. Provenance: 18?? - Haas Neveux, Geneva 2016 - Cortrie Spezial Auktionen, 10 September, 2016, est Euro10-20,000, sold: Euro10,500, "Pocket watch: extremely rare and heavy, astronomical double face pink gold hunting case watch, special winding mechanism with spring lid, perpetual calendar and moon, B. Haas Jeune & Co. Geneve & Paris ca.1885. Ca. Ø 55 mm, ca. 149.5 g, 18 K pink gold, fly spring mechanism on both sides, winding by opening and closing the spring lid, Haas-Patent No.3945, splendid and heavy edition, both sides engraved, spring lid with monogram AP, engraved globe on back, signed B. Haas Jeune & Co. Genève & Paris, extremely rare Ankerchronometer movement, both sides glazed, perpetual calendar and moon, face with enamel dial, indication of time, month and year!, moon and moon age, skeletonized movement with enamel chapter ring on back, all functions in working order, very beautiful condition, very rare."