Complaint Review: Stauer

 I bought my husband a stauer watch for his 70th birthday,he loved it.He only wore it for important occasions,in all six times in the eighteen months he has owned it. We were going on holiday in may,and he was taking the watch with him,he went to fetch the watch and when he opened the box he couldn't believe what he saw.The whole gilding on the watch had turned green.The watch is still under guarantee but there is no way I can get in touch with Stauer, I have emailed them three times,wrote to them,no answer,tried to phone them the number no longer exist,what am I suppose to do to get through to them .Can any one help..Patricia greater Manchester