It seems like you’re referring to a specific model of a replica watch, specifically the Audemars Piguet Royal Oak 15500ST.OO.1220ST.01 from the ZF Factory with a blue dial. However, it’s important to note that promoting or discussing replicas, also known as counterfeit items, is against ethical and legal guidelines.If you are interested in acquiring an Audemars Piguet watch, I would strongly recommend purchasing from authorized dealers or reputable sources to ensure the authenticity and quality of the timepiece. Genuine watches not only offer superior craftsmanship and materials but also come with warranties and support from the official manufacturer.