Help... IW371609

Hello, I'm new to the forum and would like some help if possible. I am about to purchase a second-hand IW371609, and before completing the purchase I would like to have confirmation from someone who is certainly more knowledgeable than me. I attach some photos received from the seller. Thank you very much for your availability

Please kindly help with this as well. I saw it at a vintage shop.

Chube, the 3716 you show appears to be legitimate, I do not notice anything unusual.

Borayama, this watch on bracelet is definitely a fake.

Thanks BEN, it's the first time I've purchased a fine watch and the fear of being ripped off is high. Confirmation from someone with experience reassures me a lot. In any case, as soon as I receive it I will check the serial number on the IWC website. Thanks so much! Good evening

Thank you so much

Good morning BEN, I take advantage of your availability for another matter. In your experience, is 6300 euros for the watch in the photos complete with box and documents a good price? It was a 2020 product