Omega, an 18ct gold openface watch, circa 1920. Dial: white enamel, hairlined, Arabic numerals, subsidiary seconds dial, Breguet hands. Movement: Swiss lever movement. Movement number: 7668726. Case: 18ct gold plain polished with gold cuvette numbered 8726310. Case number: 8726310 17. Dimensions: 39 mm diameter. Signed: dial and movement. Accessories: none