The screw tube is completely detached from the case. I am not sure "screw tube" is the right term. Anyway, it is what allows you to screw in the crown. See attached image. 1st time posting image. Hope it works.
How can a watch waterproof to 1000M be so weak? Sinn has a serious QC problem. Very disappointed.
What this means for me is another 2 months without the watch while it is being serviced in Germany. The 1st time it was sent to Germany was due to watermark-like stains on the crystal. And the watch is very 6 months old. Very disappointed with Sinn quality.