Steel Breitling Bentley 6.75. M44364 with carbon coating. Breitling Calibre 44B, officially chronometer-certified by the COSC, selfwinding, high-frequency (28,800 vibrations per hour), 38 jewels. 1/4th of a second chronograph, 30-minute and 12-hour totalizers. “Large aperture” calendar. Black dial with applied hour markers. Water-resistant to 100 meters. Screw-locked crown. Rotating pinion bezel with variable tachymeter (circular slide rule). Cambered sapphire crystal, glareproofed on both sides. Special decorated back. Diameter: 49 mm. Applied rhodium plated baton hour markers. Black sub-dials. Black rubber strap with steel folding clasp with carbon coating. Box and papers August 2014. Our reference 7853097.