Gold & diamond Watch no. Unknown

Case: Gold, cuvette signed "Maison B HAAS Jeune" and dated May 3, 1888 Dial: White enamel, arabic numerals, gold Louis XV hands, unsigned. Movement: Provenance: 1888 - Haas Neveux, Geneve 2023 - Guillaume Le Floc'h auction, France, 20 Apr 2023, est Eur150-250, sold Eur320, "Neck watch in 18k yellow gold, the white enamelled dial with Roman numerals for the hours, Arabic numerals for the minutes, back applied with the number BL, bezel and dust cover also in 18k yellow gold, the latter signed Maison B HAAS Jeune and dated May 3, 1888. Mechanical movement with manual winding (not functional). Diameter: 3.3 cm - Gross weight: 27.3 g The study is at your disposal to share its observations on the state of operation of the mechanisms, but cannot but cannot guarantee the level of expertise of a watchmaker."