The CHRONOMASTER Sport combines elements of past ZENITH chronograph references such as the tri-colour dial, pump-style pushers and steel bracelet with a black ceramic bezel, all in a modern 41mm case. This version features a black dial paired with an integrated steel bracelet. Powered by the El Primero 3600 1/10th of a second automatic chronograph movement.

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: Black-lacquered dial with three different-coloured counters

Strap
Strap: Metal bracelet
Clasp

Reference
03.3100.3600/21.M3100