In the scene where Beatrix is waiting for her pregnancy test results there is a closeup of a Rolex watch ticking ang making a ticking sound, but rolex watches do not tick, they move in a fluid motion. this is complicated to duplicate making it easy to spot a fake.
Actually, Rolex watches do tick, but they tick very rapidly. That watch is an obvious fake Daytona though. The markings on the registers (inner dials) are wrong. The "second" hand you see is not really a second hand at all, that's the hand for the watch's stopwatch functon. The seconds are counted off by the middle, lower register.