166.067 with cal 564 chronometer movement inside. No, the lugs are not polished, they originally come like that on this reference, and I like them. Lovely sparkle dial too!
A rare ‘“two days in a row” for me. If this watch had a screw down crown, it could be my “one watch to rule them all.”
Funny, I have four UGs with screw-down crowns and that feature is an inhibitor to me wearing more often as it's one more thing to go wrong on a vintage watch.