An early 20th century ruby and diamond quartz wristwatch

An early 20th century ruby and diamond quartz wristwatch
The engine-turned dial with Arabic numerals and outer minute railway within a ruby surround, to a rose-cut diamond bezel, the sprung bracelet composed of curved links set with a ruby line between rose-cut diamond borders, the back inscribed 'AAT 19 Mars 1911', later quartz movement, case 22mm wide, inner circumference approximately 15.5 cm
Case no. 82789