Found my grandfather’s watch. Can someone help me identify the reference?

[JohnRuth]

Hello forum members,
my father was going through my grandfather’s desk and found this vintage DeVille. He sent me a photo of it but I’m not sure what the reference is. Could I get some help identifying what it is?
Thank you!

 

[peterkirk01]

Did you check Google

 

[JimInOz]

Help us to help you.

https://omegaforums.net/threads/vintage-omega-posting-guide.383/

 

[JohnRuth]

Yeah I should’ve done more digging myself. I’m gonna do more research and will come back if I need any further help