The recognizable characteristics of the Black Bay are preserved in a steel case with a 41-millimetre diameter. A fixed bezel in stainless steel with a tachymetric scale insert in black anodized aluminium completes the distinguished appearance of this sporty new chronograph.

The manufacture Chronograph Calibre MT5813, which powers the Black Bay Chrono model, displays hour, minute, second, chronograph, and date functions. Boasting a 70-hour power reserve and a silicon balance spring, the manufacture MT5813 chronograph Calibre is certified by the Swiss Official Chronometer Testing Institute (COSC)