Rolex luxury automatic men's wristwatch. Model Reference 1131351, part of the Datejust 16013 collection. Case size 36mm crafted from yellow gold (18K). Features a blue dial and round bezel with diamonds set in prong setting type after the model was initially released with a plain stainless steel case without diamonds. The watch has 78 diamonds totaling at least 2.48 carats, displaying an average color F and average clarity VS diamond grade. Movement is automatic.