

Impossible Hamilton ID
I just bought a vintage Hamilton on eBay and after hours of research I still can’t identify it. The main complication is the fact that both “Hamilton” and “Automatic” are printed on the top half of the dial, and that there is no “H” logo.
Details:
Stainless steel case
All 12 Arabic numerals
Dotted minute markers
“Record” dial with many concentric circles
Both “Hamilton” and “Automatic” are printed on the top half of the dial
“Swiss” printed at the bottom of the dial
Sweeping seconds hand movement
Appears to open from the crystal, not the caseback.
I’ve attached photos for review. My guesses were the Jason or a Seaman (but they aren’t automatic) and some K-5xx but I can’t find any. I don’t have it in my possession yet, but I’ll open it up to check once I do!