Not that rare or collectable. Model is on case back 191.0182 Cal 1417 Quartz De Ville was made in many (100s) varieties of metals and designs in the Quartz age. Value $100-$200 maybe ? unless solid gold case which don't think this one is. Need better pictures to see condition. Clean and a leather strap will look alright as a dress watch. Automatic and manual watches are a lot more collectable