The Breitling Superocean Automatic 46 A17378211B1S1 is a robust dive watch featuring a 46 mm stainless steel case and a black dial. It is powered by the Breitling Caliber 17 automatic movement, offering a power reserve of approximately 38 hours. The watch includes a bidirectional ratcheted bezel with a ceramic insert, a screw-locked crown with two gaskets, and a cambered sapphire crystal glareproofed on both sides. Water-resistant up to 300 meters, it is equipped with a black rubber strap and a stainless steel folding clasp. The reference number for this model is A17378211B1S1.