Please allow me to welcome You here on the newDWF forum and congratulations for Your purchase!
The Golden version of the 10 DIGIT Casio CA-601 calculator watch is quite rare, so it may appear rarely on Ebay, thus nobody can tell You exactly its actual market value/selling price, but it is for sure above 100 USD/EUR (being much rare and sought after than many other collectible Casio watches that are sold at this price regularly on Ebay).
On the other hand, I've presented my recently acquired Casio CA 601G on this forum on other topic (in the bottom posts of the topic) - so please see the link below
viewtopic.php?f=67&t=8400
If You need more information, please feel free to ask me or other more knowledgeable members of this nice forum...
Until then, You can see Your 1984 Golden CA601G calculator watch in a Casio catalogue from 1984, on Adam's excellent website digital-watch.com:
http://www.digital-watch.com/casio_84_g ... _full/619/
Regards,