Sara and her boyfriend go to a restaurant for dinner. While washing her hands in the restroom, she removes her watch and accidentally leaves it there. Later in the evening, a waitress finds it and turns it over to the restaurant owner. The owner put it in the safe and then forgets about it until 6 months later when the cleaning lady finds it there and shows it to the restaurant manager. Assuming that Sara never returned to the restaurant to look for the watch, who has claim to it and why?

The waitress

The restaurant owner

The cleaning lady

The restaurant manager