Lightweight materials create a sense of lightness from the inside out - OMEGA Seamaster Planet Ocean Dark Gray Stainless steel, gold, and platinum have always been traditional watchmaking materials. However, as watchmaking technology becomes more sophisticated and consumers' demands for innovation increase, many brands are turning to special materials. Among them, OMEGA is a master of material research and development worth mentioning. It has launched many unique and novel material watches over the years. This year, it also launched the new Seamaster Planet Ocean Dark Grey. The watch uses lightweight materials from the inside to the outside to achieve the ultimate of lightness. The 45.5mm diameter case is made of gray silicon nitride ceramic, which is twice lighter than zirconia ceramic. It is particularly light on the wrist and strong and durable. This is also the first time that OMEGA has used silicon nitride on a large scale to make a watch. The total weight of the new model ...