Hello, help needed please. I have recently bought a mark xv, my second, and have a question re the crown. It is, (unlike my first xv), stiff to wind and clicks on turning. It was serviced earlier this year and the previous owner tells me that this is something of a norm with the xv?? I am not so certain. I have been sent a box to send the watch to London for a watch mechanic from IWC to look at. I wondered if anyone had any experience with this?? Is it the norm and should I not worry or does it sound like a serious,,,expensive,, problem? The watch is a beauty and seems to have been well looked after and serviced regularly so I am of course hoping I have not bought a flop.