Looks like BFG, pin lever.
BFG = Swiss manufacturer Baumgartner. Maker of (ahem) popular priced pin lever, low or no jewel movements for very inexpensive watches.
Some folks collect watches like that. Not many on the Omega Message board, though. And certainly, not me.
No! NOT expensive! 😉 The exact opposite. Perhaps not what you wanted to hear.
Ha! I did.