A gold and diamond pocket watch, early 20th century, the circular white enamel dial with 24 hour

A gold and diamond pocket watch, early 20th century, the circular white enamel dial with 24 hour Arabic numeral indicators, foliate blue steel hands and subsidiary dial, within a foliate gold case in the Belle Epoque style, the reverse with circular- and rose-cut diamonds, the top with a winder and suspension hoop, length 4.2cm, provincial French 1838-1919 assay marks for 18ct gold, interior numbered 50326