There have been a few Jovial watches posted in here (you can use the search function to see). I've just looked at 3 and all of them had Eta movements inside, so likely yours has too. Its not a particularly well-known or sought after brand, but with 21 jewels it would have been a good quality watch when new. As laikrodukas has pointed out, the overall cosmetic condition is poor so if you want to sell it just describe it honestly and put it on ebay with a low start price and let the market decide its worth.
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