I found this at an antique store and I bought it for $1. The lady working there said it belonged to a dentist and she bought it at an estate sale. I believe this is a De Ville but I’m not sure if it’s real or fake. It’s missing the crown and it’s on a Speidel USA band.
Hi j_fanguy, welcome to the forum! All of the information you need to identify your watch is contained on the inside caseback. You'll need to find a watchmaker in your area who can remove the caseback and provide you with the reference numbers. Those reference numbers will identify the exact model of your watch. The serial number on the movement will help identify the production year. Once you have those numbers (take pictures) come back here and we can guide you further.