After my grandfather passed away, we went through his belongings. I noticed this watch, and since no one else seemed interested, I decided to keep it. However, I haven’t been able to figure out where it’s from. Does anyone happen to know what kind of watch this is?
Looks like a Hamilton M69-3 , likely from the late 60's. That watch had a 688 movement, made in Switzerland. (If you open it, 688 should be written on the movement.) At that time, Hamilton was an independent watch co, headquartered in Pennsylvania. It shut down the US operations, probably in the '80s. It later became part of the Swatch group.