A watch that tells time ... and improves your balance?

11:01 AM ET Wed, 24 May 2017
Esso Watches not only purport to tell ordinary time -- they can also better your health and balance. It's a dubious claim and one that Shark Lori Greiner puts to the test. But even though she's somewhat sold on the idea, Mark Cuban's still not buying it. Shark Tank Monday - Thursday Starting at 7P ET