Processing technology package 18k rose gold modified bullf needle bullf dial customized version movement brand Patek Philippe movement fully automatic mechanical movement power reserve 48 hours glass high-strength double-sided sapphire mirror shell material 940L steel strap material short-billed American alligator crocodile Leather strap size 40mm Professional research and development: Our factory has never stopped demanding quality craftsmanship, top-grade gold-plating technology, high gold content, wear-resistant, solid and durable, without any decoration, specializing in repeat customers, quality guaranteed. Our factory specializes in wrapping Thick gold, set with real South African diamonds, privately customized! We promise that all gold-plated, real gold and real diamonds can be certified by national authoritative institutions! Scientific, rigorous, objective and fair! ,