Gold Repeating Watch no. 1421

Case: Yellow gold. Dial: Silver with gold accents, engraved & engine turned all over, Roman numerals, signed "B. Haas Je. & Ce., Brevete" Movement: bi-metallic balance with blued steel balance spring with Breguet overcoil with square polished steel kidney piece. Provenance: 18?? - Haas Neveux, Geneva 18?? - "SIAM" 2017 - Christie's 13 Nov 2017 est CHF7,000 - CHF12,000 sold CHF6,875 "B. Haas Jeune & Cie. A fine rare and unusual 18K gold minute repeating double-dial two-train keyless lever chronometer with independent jump centre seconds and calendar Signed B. Haas Jne & Cie, Breveté, Chronomètre Répétition à Minutes Quantième, no. 1421, circa 1880 Movement: cal. 20’’’, manual, 36 jewels, two-train with tandem winding Dial: silver with applied gold flower decoration, signed Case: entirely engraved, hinged back cover over the calendar dial decorated with monogram “SIAM” in black and blue champlevé enamel, the interior engraved with the technical details, signed, levers for start/stop of the seconds and calendar on the edge of the bezel, 54 mm. diam." 2018 - Dr Crott auction 12 May 2018 est euro 10-15,000 "Benjamin Haas Jeune & Cie, Brevetes a Besancon/Geneve/Paris, case no 1421, 54mm, A magnificent minute repeating double-sided pocket watch with stoppable jumping seconds and date indication on the back - A truly remarkable timepiece, case 18K gold, enamel monogram, lavishly decorated, the back is designed as a spring lid and conceals the date, dial silver, applied gold ornaments, movement, bridge, 2 hammers/2 gongs, gold screw compensation balance "