Can anyone tell me what this is? I'm having a tough time identifying the model...
looks like a watch
How about this one? https://www.omegawatches.com/watch-omega-seamaster-omega-st-166-0211/
A watch, indeed. Thanks(?). 166-0211! Thanks! Case back looks like it's not original to the watch?
Open it and get a pic (IN FOCUS) of the inside of the caseback.
Separate names with a comma.