Don't use chrono24, it's just an escrow service. If someone is selling you a fake, they won't be afraid to burn the money and leave the money hanging in escrow. "If I can't scam you, you can't get the money either"
good to know on Chrono. Had not used them but lots of people have vouched for them I have used both Jomashop and Luxury Bazaar. They are legit. LB hasexcellent service.