I bought this watch for my best friend on his birthday to give him beautiful gift. When I give him gift, he is very happy but after 10 days he called me and complain about this watch's battery backup and he was very angry then. He asked me that, why are you waste your money on this bad worse.
Not only that, when he gave me cost price of this watch, I fill very guilty about that because I was give him this watch with my heart.