Breitling watch superocean heritage chronograph 46 black a1332024b908135s designed with the objective of accompanying professional and military divers on their missions in deep waters this breitling superocean heritage chronograph 46 watch has been fitted with a boldly sized 46mm stainless steel case with a security valve to equalise the pressure inside and outside the case assisting in its 200 metre water resistance ready to take on every challenge this breitling superocean heritage 46