Premier watch, 42 MM, Self-winding mechanical. Calibre Breitling 01. Chronograph : 1/4th second, 30 minutes. Stainless Steel Case with Transparent sapphire crystal caseback. Approximately 70 hours power reserve. Vibrations 28,800 v.p.h with 39 jewels. Non screw-locked, two gaskets. Cambered sapphire crystal, glareproofed on both sides. Black Dial - Stainless Steel Braclet.