For Baselworld 2017, Zenith has prepared the Chronomaster El Primero Grande Date Full Open watch. This watch will come in two variations: a full stainless steel case, or two-tone stainless steel and pink gold. Both will feature a domed sapphire crystal on the front, and a sapphire case-back. The dial shares the same layout as the previous versions, but for the Zenith Chronomaster El Primero Grande Date Full Open, the architecture is on full display.
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Zenith Chronomaster El Primero Grande Date Full Open
The transparent date window remains between 1 and 2 o’clock with a red backdrop, and the moon-phase (complete with a 59-day double-lunar cycle) at the 6 o’clock position adds a splash of additional color to the traditional red, blue, and grey Zenith palette.
The 45 mm case hides the in-house Zenith El Primero Calibre 4047B, with more than 332 components artfully put together to create this stunning timekeeping wonder. The self-winding chronograph movement operates at 36,000vph and has a 50-hour power reserve. Because it beats at 5Hz, this allows for an accurate display down to a tenth of a second.
![](http://www.extravaganzi.com/wp-content/uploads/2017/03/Zenith-Chronomaster-El-Primero-Grande-Date-Full-Open2-528x487.jpg)
Zenith Chronomaster El Primero Grande Date Full Open
The steel version comes attached to either bracelet or a black leather strap, while the pink gold choice features a black leather strap or a lovely brown chestnut leather strap.
The price has not yet been published, but “non-full open” models in steel and gold range in the $10,000-$15,000 so expect a bit more than that.