An enamel and seed pearl watch and chain, early 20th century, the watch with a circular golden dial

An enamel and seed pearl watch and chain, early 20th century, the watch with a circular golden dial with enamel indicators and blue steel hands, within a case applied with pale blue guilloché enamel, the back set with rose-cut diamonds, length 5.5cm including bail, interior with French assay mark for gold, numbered 6645, manual winding movement, to a necklace composed of baton links applied with blue guilloché and white enamel, on a chain threaded with seed pearls, length 59cm, French assay and maker's marks, pearls untested