Gold 50 official synchronized third-generation Diefei Elegant debut 1TW latest launch of Omega Diefei series elegant small seconds fully automatic mechanical men's steel belt style new upgraded version 41 watch diameter synchronized official website internally equipped with Omega 8802 Master Chronometer movement through Sapphire glass case back, the operation of the movement is clearly visible, accurate travel time, power reserve 55 hours 2 Case material 316L stainless steel, arched sapphire glass, anti-reflective treatment inside, arched dial, printed with irregularly arranged vertical textures . 3 Italian cowhide with original buckle steel strap perfectly matches the lugs, waterproof to 50 meters.