The Chronomat 44 Blacksteel Special Edition by Breitling is the epitome of boldness. The satin-brushed steel case and bezel stand out by their black carbon-based high-resistance treatment. They make a powerful contrast with the yellow dial. the caseback with a black oscillating weight visible through a transparent sapphire crystal, as well as on the two-tone rubber TwinPro strap combining a black exterior with a yellow lining.