Made in the Art Deco period (late 1920s). Elegant engraved silver dial & Breguet hands. Elgin National Watch Co. / Movement: 17 jewels, Adjusted – a high-grade practical model of the time. The case is Keystone Watch Case "J. Boss" 14K White Gold-Filled (14K white gold layer on a brass core = high-grade specification). **Size 12 (approx. 44.5 mm in diameter)**, making it easy to fit in the pocket of a Japanese three-piece suit. Confirmed 24-hour continuous operation (when the mainspring is fully wound). Specifications Item Details Manufacturer: Elgin National Watch Co. Year of Manufacture: Around 1926 (estimated from movement No. 2 8 9 3 6 5 0 9) Grade: 479 (12s / Model 4 / 17 Jewels / Adjusted) Number of Jewels: 17 (Ruby & Sapphire) Case: Keystone "J. Boss" 14K White Gold Filled Size: Outer diameter approx. 44.5 mm (excluding crown) / Thickness approx. 7.2 mm *Background grid: 1 square = 1 mm, measured Mechanism: Hand-winding / Pendant set Accessories: Body only Condition Exterior: Numerous scratches on the back cover (see photos), but the mirror surface is still in good condition. Dial: Subtle tone changes due to aging. Printed Roman numerals are dark and highly visible. Windshield: Plastic, with minor wiping scratches. Shipping Waterproof cushioned envelope Rakuraku Mercari delivery service (with tracking and compensation), shipped same day to next day. Please Note This is a mechanical watch from over 90 years ago. It does not guarantee the same accuracy as current products. Accuracy may fluctuate due to impact during transportation. Please make fine adjustments with the crown after arrival. Reproduction of images and descriptions is prohibited.