While many aspects of the original Heritage Black Bay remain, such as a dial topped with lume, snowflake hands, a unidirectional bezel, and a waterproof case; the newest reference 79730 offers a distinct style.  Most notably is the addition of a satin-brushed stainless steel bezel, a feature that is new to the Tudor Black Bay.  When paired with the stainless steel 41mm case and riveted bracelet, the all-steel Black Bay 79730 provides a style that is unique to the growing Black Bay family while paying homage to other traditional Tudor diving watches.

In addition to being the first all-steel reference, the mens Tudor 79730 was also the first Black Bay timepiece to offer a date aperture on its dial.  This feature is displayed at the 3-hour marker and complements the dial with modest proportions.  The date function is built into the new Tudor manufactured Calibre MT5612 movement along with a frequency of 28,800 bph and a 70-hour power reserve.  The calibre MT5612 also carries a COSC certification, ensuring a precise reading.