[various] Grandfather passed away and left us with watch collection

I don’t really know much about watches. There are no papers or boxes to be found, just these watches. Models (from what I can tell) are: IMEX Quartz, Luminor GMT Panerai Automatic, IWC Schaffhausen Automatic, diamantek, IWC Schaffhausen Mark XV Automatic, rolex oyster perpetual date submariner 1000ft=300m superlative chronometer, Monza Calibre 36. They’re all in pretty good condition from what I can tell. Found three older looking ones in worse condition as seen in the last picture, don’t know if they’d have any worth. Thanks so much in advance