This works as a tool of attraction in a very simple way: creating anxiousness. Consider this scenario:
You have your date over. You guys are hanging out, drinking some wine, laughing, la-di-da, etc. The night is going well. Clearly, your date is going to want to take things to the next level. However, you don’t make a move; you just keep the night going. He/She’ll look over at the Mississippi Clock and will literally be counting the seconds, causing him/her to react and make a move, probably sooner than initially intended!
Weird logic, yes. Effective, maybe. Interesting looking clock, definitely.
[via The Awesomer]