Reference Number: 03.2080.4021/21.C496
Also Known: 2015631049
Band type: Crocodile
Caliber: El Primero Caliber 4021
Case Material: Stainless Steel
Clasp Type: Deployment
Watch Functions: Hours, Minutes, Subsidiary Seconds, Chronograph, Power Reserve, Tachymeter
Power Reserve Unit: Days
Strap Color: Black
Limited Edition: No
Case Back: Transparent (See-Through)
Dial Color: Black
Lug Material: No
Power Reserve: 50
The Chronomaster Open dial ? a Zenith creation ? lets one see into the perfectly synchronized pulsations and the magic of the mechanism in what is today unanimously considered as the ?best serial movement in the world? for its performance and its chronometric reliability.
Its secret lies in its number of vibrations, which is 25% higher than in other movements on the market.
Whereas other timepieces make 8 vibrations per second, the El Primero caliber makes 10 in the same time.
The Open concept is the realization of technical prowess: to make the regulating organ visible, it has been moved to 10 o?clock, on the edge of the movement.
Everything shows the great tradition of watchmaking: a column-wheel chronograph mechanism; a power reserve indicator; a rhodium-plated plate, circular- graining and chamfered bridges; strokes drawn on the hammers, levers and conveyors; oscillating weight with ?C_tes de Gen?ve? guilloch_ work; revelation of the Zenith star through skeleton work and tachometric scale on the flanges that goes back to the chronographs used in the first automobile races.
Water resistant to 100 meters / 330 feet
Included: Manufacture’s Box and Papers