Watch Data Gold Watch no. 54413 Case: 18K signed "HNC", reverse with enamel "RBT" monogram, numbered 54413. Dial: Gilt, arabic numerals, minute track, blued steel hands. Movement: Nickel, bi-metallic balance with balance spring with polished steel kidney piece, hanging mainspring barrel, unsigned. Provenance: 19?? - Haas Neveux, Geneva 2019 - Private collection