ZENITH Chronomaster Open El Primero 3604 Automatic Chronograph 39.5mm Watch sapphire making it suitable for everyday

making it suitable for everyday use and light water activities

and a dotted minute track on the outer zone

Get back to basics in style with the classic Wilton from Bulova

The date window at 6 o'clock

blending luxury with the everyday need for expression

ZENITH Chronomaster Open El Primero 3604 Automatic Chronograph 39.5mm Watch sapphire making it suitable for everydayThe CHRONOMASTER Open offers a view of the beating heart of the El Primero movement from the dial. Crafted in a sleek 39. 5mm steel case, this version features a matte black dial with tricolour counters and a transparent counter for the running seconds, paired with an integrated steel bracelet. Powered by the El Primero 3604 1 10th of a second automatic chronograph movement.