Audemars Piguet Royal Oak Offshore Blue Dial “Beast” 25770ST 25770ST. Audemars Piguet 25770ST Royal Oak Offshore Chronograph, 25770ST. 01 one of the earliest Royal Oak Offshore references, stainless steel on a Audemars Piguet black velcro strap, automatic Audemars Piguet caliber 2226/2840 movement, original blue dial with luminous Arabic numerals and hands, grey/silver subdials, sapphire crystal, solid case back, rubberized pushers, water resistant, Like New with AP box and undated papers. Please allow 1-2 day processing. Our family business always strives to treat customers like family. Established in 1993 and located in the heart of Boston’s Back Bay, we stock a curated selection of new, pre-owned, and vintage wristwatches. Designed & Developed By. Designed & Developed By : eFusionWorld.