Automatic mechanical chronometer movement certified by the COSC, Breitling Calibre 26 based on ETA 2892-A2 with 21 jewels and frequency of 28800 vph; approx. 42-hour power reserve. Analog dial featuring stick hour markers (silver-tone) and luminous coating for illumination. Brown leather strap fitted to a stainless steel round case measuring 42mm in diameter, thickness 16mm with screw-down solid case back and fixed platinum bezel. Sapphire crystal resistant to scratches provides the scratch-resistant sapphire crystal display. Date display at the 6 o'clock position. Chronograph functions include three sub-dials for 60 minute, 12 hour and tenths of a second time measurement. Water resistance up to 100 meters / 330 feet.