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

Movement
Movement: El Primero
Components: 311
Frequency: 36,000 VpH (5 Hz)
Power reserve: approx. 60 hours

Functions
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
Hours and minutes in the centre
Small seconds at 9 o'clock

Case
Material: Steel & Ceram
Diameter: 41 mm
Water resistance: 10 ATM
Dial: White matte dial with three different applied coloured counters

Strap
Strap: Metal

Reference
03.3100.3600/69.M3100