It’s gold plated.
I’ll also assume quartz. It’s worth a couple hundred at most.
Late 70’s early 80’s quartz are not very valuable at this time. The exact model number is inside the caseback. There were hundreds of variations of these during that time. If you open it up and it has a mechanical movement add another hundred or so, but I doubt it.
Neat family heirloom, but that’s about it, have a battery put in it and enjoy.
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