A small gold and diamond art nouveau keyless lever watch with unusual chatelaine, Zenith, no.1762989, circa 1910

18k, nickel lever movement, 16 jewels, bi-metallic compensation balance, enamel dial, arabic numerals, subsidiary seconds, cast design of flora and ribbon bows set with diamonds, polished back, with unusual gold and diamond chatelaine with well cast design of flora and fauna centred with the head of two dogs with diamond below, suspended from a wire brooch pin, case, dial and movement signed