Diamond and sapphire wristwatch, Omega, circa 1930, the lady's white gold and platinum manual winding wristwatch with 17 jewels, silvered dial with applied batons, the tonneau shaped case with single cut diamond surrounds and sapphire accents, on a bracelet decorated with rows of single cut diamonds and calibre cut sapphires to a white gold adjustable mesh strap, dial and movement signed, case back engraved with initials, width approximately 17 mm.