Croton

HI all i just bought a croton 2836 auto and when i got it the minute hand would spin around the dial when i shook it to wind i called the seller and he said to send it to croton since they had great cs and warrantee has any one had to send thier croton in and if so, how was the cs and do you think this will be covered under warrantee or should i ask seller for refund. this is a very hard to find model sorry i have no pics ill try to post later thanks for reading