Since 1993, the Seamaster Diver 300M has enjoyed a legendary following. This year, the collection celebrates 25 years with a full makeover from the inside out. The original design and ocean spirit are still there, but now with advanced materials and updates in every model. Now sized at 42 mm, every design detail has been rethought, including a new ceramic bezel with the diving scale in white enamel. Inside, the watches include the Master Chronometer Calibre 8800, instantly taking the collection into a higher realm of precision, performance and magnetic resistance. The popular wave pattern dial has been reintroduced (now laser-engraved) and the indexes have been raised and filled with Super-LumiNova. Even the skeleton hands have been subtly reshaped.