The cases of the 39.5mm and 43.5mm models, as well as the 45.5mm chronographs, are made from stainless steel or 18K Sedna™ gold. Most impressively, the dials and bezels have been created from ceramic, a sleek effect that is enhanced by Liquidmetal™ or Ceragold™ numbers and scaling.
"Subtle design details include Arabic numerals, an alveol screw-in caseback and a transferred minutes track."
In some Planet Ocean models, rubber has been blended with ceramic to create the first 15 minutes of the vibrant diving bezel. Some straps are also made from rubber with an anti-bacterial treatment. Even on the water-resistant leather straps, rubber has been included on the underside for comfort and functionality.
"Revolutionary movements and technologies take these models to the next level."
The Master Chronometer calibres that drive these watches (9900 / 9901, 8906, 8800 / 8801, 8900 / 8901) are at the pinnacle of watchmaking precision and performance. Each watch has passed the 8 rigorous tests set by the Swiss Federal Institute of Metrology (METAS), proving its excellence even in magnetic fields of 15,000 gauss.