The characteristic element of the Black Bay Bronze is an imposing bronze case, which measures 43mm in diameter. It is an aesthetic reference to the use of bronze in historic ships and other diving equipment. The highperformance aluminium bronze alloy guarantees the development of a unique patina to match its user's habits. The first bronze model, a Black Bay with a chocolate-brown dial, was introduced in 2016 but now, Tudor continues to explore this rare material with its characteristic patina with a new slate-grey dial.