AVOID Catawiki. I've bought a watch and in the ad it says that it have a 16cm strap. According to common sense the strap is the part that connects to the watch. So to calculate the diameter I added the size of the watch to the size of the strap and concluded that it fits ok. Once I received it I found that the 16cm was the total diameter. Reach out the seller and he told that my understanding was not correct. Opened a dispute in Catawiki (it took one month to get their supposed experts an answer) and at the end they said that a strap is the total watch, even after sending them several examples of sites showing how to measure a watch. They simply closed the dispute without any further response to my arguments. They only defend the sellers. It was my worst experience buying in an auction. Don't recommend at all. Now I understand why they don't accept PayPal.