CHRONOMASTER SPORT Automatic El Primero column-wheel chronograph able to measure and display 1/10th of a second 1/10th of a second indication on the ceramic bezel Increased power reserve of 60 hours Date indication at 4:30 Stop-second mechanism Ref 03.3100.3600/21.M3100 Chronomaster Sport Black Dial 03.3100.3600.21.M3100 Functions Hours and minutes in the centre. Small seconds at 9 o’clock, 1/10th of a second Chronograph: Central chronograph hand that makes one turn in 10 seconds, 60-minute counter at 6 o’clock, 60-second counter at 3 o’clock Movement El Primero 3600 automatic Frequency: 36 VpH (5 Hz) Power-reserve : min. 60 hours Case Diameter: 41 mm Material: Stainless steel with black ceramic bezel Water-resistance: 10 ATM Dial Black matte dial with three different applied coloured counters Hour-markers: Rhodium-plated, faceted and coated with Super-LumiNova SLN C1 Hands: Rhodium-plated, faceted and coated with Super-LumiNova SLN C1