Try it out right away in case you need to return it.
I bought this watch and was disappointed. It needed a battery for one thing. Then as I was trying to set the correct time, the second had fell off.  They do give a few weeks to return it but I missed it because it was a gift that I bought ahead of time. I should have tried it out when I got it. Maybe most work fine and I just got a defective one.
Rating: 1 stars