I have found a couple of pics similar to your watch, maybe these will help someone to indentify it ?
Nice looking watch though 👍
MOVEMENT: original mechanical with manual winding movement, RARE & DESIRED highest quality caliber VALJOUX 77 used as well by many others TOP watch brands during 40'ies & 5'ies. Movement is signed: HARMAN WATCH Co, SEVENTEEN, 17 JEWELS UNADJUSTED SWISS. Caliber VALJOUX 77 measures 29.50mm diameter (13 lines) and has a 30 minutes counter.