Watchuwant is now WatchBox! Subscribe for the best luxury watch content. Zenith Chronomaster XXT Open features a 45mm stainless steel case, crown, chronograph pushers, and double-stepped bezel. The black dial is adorned by applied steel Roman numeral and dart hour indices, along with additional polished accents seen in the power reserve indicator, the chronograph 30-minute recorder, and surrounding the "open heart" aperture that exhibits the movement inside-- which is, in this case, a self-winding El Primero 4021 movement. This caliber contains 39 jewels and boasts a minimum 50-hour power reserve. Watch is on a stainless steel bracelet with double-deployant clasp. See this 45mm stainless steel Zenith Chronomaster XXT Open Ref. 03.1260.4021 in high-resolution images on our website, https://www.thewatchbox.com/watches/zenith Instagram: https://www.instagram.com/watchbox/ Video and content by Tim Mosso and Pheline Jerome.