Hi. I have recently been tasked with finding out which watch this is and if it's worth anything, but after searching around i have found close to zero info. Does anyone here have a clue?  Serial number is 1093418. Between the lugs it says "Plaque G20" and has a small symbol with possibly a MB inside? :new

That is a late 1950s Gold Plated Glorious dress watch. A. Schild made the ebauche movements for Zodiac which were tuned in house.

Before wearing it I would caution you to read this: https://www.vintagezodiacs.com/zforums/index.php?board=4.0