Zenith Chronomaster Open 03.3300.3604/21.C822 under-30mm and follows ISO standards for

and follows ISO standards for scuba diving to depths of up to 200 meters

Caliber Number: 6R55 (automatic with handwinding)

An aesthetic that can be attributed to the new neomatik caliber within

Water Resistance: 200m

applied numerals and indexes with Super-LumiNova

Zenith Chronomaster Open 03.3300.3604/21.C822 under-30mm and follows ISO standards forA window into the beating heart of the legendary El Primero The CHRONOMASTER Open offers a view of the beating heart of the El Primero movement from the dial. Crafted in a sleek 40mm steel case, this version features a matte black dial with tricolour counters and a transparent counter for the running seconds, paired with a black cordura effect rubber strap. Powered by the El Primero 3604 1 10th of a second automatic chronograph movement.