Very rare n working good Harwood ( first automatic watch in the world ) . First version ! Ref 2671 patent no 1576120 dated 1928 . Silver case . All Original. Can wore around 20 hrs !
https://jewelry.ha.com/itm/timepieces/wristwatch/harwood-self-winding-watch-co-patent-1576120/a/5242-56324.s
http://jacktreasure.blogspot.com/2009/07/history-of-first-automatic-watch.html?m=1