First introduced at the SIHH in 2018 the AP Royal Oak Offshore Diver reference 15711OI is fitted with an 18K pink gold case and a titanium bezel titanium plots and a light grey dial with matching grey rubber strap. Truly this watch is simply elegant. Its uncomplicated yet captivating aesthetics makes this watch simple and fascinating. With a 42mm diameter case and a display case back revealing the AP calibre 3120 what separates the Diver from the other AP collections is the crown. Rather than being rubber clad the crown is made in grey ceramic following the monochromatic colour pattern of its case.