Hey guys I've done a little searching here on the forum and haven't come across anything like what I'm posting. What I have here is a watch belonging to my grandfather. I know absolutely nothing about it lol. It's small (1 5/8" diameter), unsure of the metal, engraved on the front with initials, no markings at all on the back. The pictures will tell you anything else. Any info you guys can provide would be greatly appreciated. He's been looking for some info on this watch for a while and hasn't been able to come up with anything. You guys would make his day if you can help me out. Thanks!
Also we thought there might be maker's marks of some sort inside but we didn't want to try to take it apart lol. Anyone know how it might come apart?
Back of watch