1920s 9ct gold tonneau vintage Rolex watch

A 9ct gold tonneau vintage Rolex watch. The case measures 21 x 30 mm. The case is signed Rolex, 20 World’s Records, Geneva-Suisse and hallmarked Glasgow 1929. The fine quality movement is signed Rolex Prima, timed to 6 positions, for all climates, with 15 jewels. The silvered ‘machine-turned’ sun-burst dial has black Arabic numerals with a subsidiary seconds dial. The dial is signed Rolex above the centre.