VINTAGE WWI US NAVY 8 Days CLOCK Plane Ship Auto Keyless Watch WW1 Aviation Old Sep 11, 2018 vintage NAVY 8 DAYS CLOCK… Not sure if it was from a plane, boat or auto. KEYLESS AUTO CLOCK CO. REFERENCE STAMP AT BACK. Patents since 1907 to 1915 (see last photo). Display diameter size: 7cm – ...