You are probably familiar with the IMDB.com, IMCDB.org or IMFDB.org that catalog and cross reference movies, actors, cars and firearms. So I searched for one for movie watches.
The closest thing I could find was https://www.watch-id.com/
. Unlike the first three that allow anyone to contribute to the database and have little to no advertising, watch-id is closed to outside contributors and choked with advertising and links to buy.
It is fun to explore and informative, specially when you catch a glimpse in a movie of an interesting looking watch with which you are not familiar, which in my case is almost all of them. Search by personality, movie or watch.