Hello, I recently purchased a new Sinn 356 acrylic. This is my 5th watch from Sinn as I love the brand and all have been fantastic. Being very exited to get my first chronograph I opened the box to look the watch over. Upon inspection I noticed there was a slight crack in the acrylic crystal near the 6 o clock. I was very disappointed because I was extremely excited about this watch. So I call watchbuys and they were actually extremely helpful but they did not have another watch to exchange for damaged piece. I really wanted the watch so I did not want a refund even though they offered me one. They also said they may not get any more for a few months and they recommend I send it to RGM for repair. Reading all the horror stories about long wait times at RGM I was a little apprehensive about doing so. Anyway, they paid for shipping and I sent the watch in for repairs. 2 days later I get a email saying RGM has received my watch. About 2 weeks later I get a email saying Sinn agreed to replacing the Crystal on my watch. Another month goes by and I received an email saying my watch was one it's way back and I just received it today. So 6 weeks for a watch repair at RGM isn't terrible compared to what I've heard. The watch is looking and running great too. Currently it's running about +6 a day which I'm comfortable with. In the end it did turn out but it indeed was not a great situation. I will continue to be a customer of watchbuys for their excellent customer service. They really did do a great job of making me feel better about the situation and were very responsive to my emails even on a Sunday morning.