Zenith Chronomaster XXT Open
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The Zenith Chronomaster XXT Open (ref. 03.1260.4021.73.C) is a men's dress watch with a 45 mm round case in stainless steel. It has a grey dial under sapphire crystal.
It is powered by a self-winding mechanical movement. Features: Open balance, roman numerals, power reserve indicator, transparent caseback, luminescent hands. Water-resistant to 30 m. The watch is fitted with an alligator leather strap with a folding clasp in steel.
This example is pre-owned and in good condition.
Caliber El Primero 4021 runs at 36,000 vibrations per hour (5 Hz), allowing the chronograph to measure to a tenth of a second. It has 248 components and 39 jewels, and the mainplate is adapted to show the balance on the dial side.
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Zenith was founded in 1865 by Georges Favre-Jacot in Le Locle, in the Swiss Jura, and is one of the oldest integrated manufactures in Switzerland. Its most famous achievement is the El Primero, presented in 1969 as one of the first automatic chronograph movements and running at a high frequency of 36,000 vibrations per hour.
The El Primero calibre powers the Chronomaster collection, including the Chronomaster Sport and open-dial versions. The Defy line covers modern designs, from the Defy Skyline with its integrated bracelet to the Defy 21 and Defy Extreme chronographs that measure to a hundredth of a second. Zenith also produces Pilot and Elite watches.
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