here are some extra pics of the Zenith and some info
EL PRIMERO 4021C AUTOMATIC MOVEMENT WITH CHRONOGRAPH,
POWER RESERVE INDICATOR, OPEN DIAL SHOWING THE ESCAPEMENT MECHANISM
BLACK OR WHITE TITANIUM CASE WITH SAPPHIRE CASEBACK, TRANSPARENT DIAL IN SPATIAL TR90, CARBON FIBER STRAP
AVAILABLE IN TWO SIZES
CASE DIMENSIONS: 51 MM x 36 MM or 48 MM x 34 mm
WATER-RESISTANT TO 50 METERS
BLACK OR WHITE TITANIUM TRIPLE-FOLDING BUCKLE WITH ZENITH STAR ON THE CAP