Last released over 50 years ago, Zenith brings back with aplomb the Chronomaster Original Triple Calendar, arguably the most versatile and functional line within the Chronomaster collection.

Retaining the 1/10th of a second chronograph, the inclusion of the complete calendar is executed in a manner that makes it intuitive to read without cluttering the dial. The days of the week and months are displayed in symmetrically positioned windows above the chronograph counters, while the date window is positioned in the traditional El Primero position of 04:30. The moonphase display is placed with the chronograph’s 60-minute counter at 6 o’clock.

The Chronomaster Original Triple Calendar’s compact 38mm case in steel follows the exact blueprint and proportions of the iconic A386 model from 1969. With its bezel-less construction and featuring a raised and domed sapphire crystal, the incorporation of a complete calendar with moonphase mechanism to the automatic high-frequency 1/10th of a second chronograph calibre without altering the case’s proportions are a true feat of ingenious design.

The Chronomaster Original Triple Calendar comes in two distinct dial versions: A sportier silvery-white “panda” opaline dial with black counters and 1/10th of a second scale, and an opulent opaline slate-grey dial with silvery-white counters and scale that is directly inspired by the small series of El Primero triple calendar prototypes from 1970.

Both versions are highlighted by rose gold-tone applied baton markers and hands, adding a warm contrast that brings out the polished rose gold moon set on a metallic blue sunray-patterned disk with five-pointed stars. A third dial variant, exclusively for the Chronomaster Original Triple Calendar Boutique Edition available only at ZENITH physical and online boutiques, is done in a sunburst olive-green tone with golden applied markers and hands. In each version, the calendar wheels match the dial colours.