Vintage Globemaster? Help Please!

Pics: https://imgur.com/a/9uPGowK

Hi all! Buddy of mine just got this vintage Globemaster from his grandfather and is looking for some more info on it. Seems to be gold plated, has "10K GF BEZ STEEL BACK" on the caseback, and that's about all I have to go on. My cursory searching so far hasn't yielded much...

Anyone know more about this piece? A reference number or something? Is it even real? Thanks for looking!

@liebs520 you're no noob, please respect the guidelines, including uploading photos instead of linking to imgur:

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

Joined in 2017, might be high time for you to upload an avatar?


GF Bez = Gold Filled Bezel a thicker coating than gold plated

If you open the caseback, you'll see the model/reference number.

Please post pics showing the inside case back and movement.