The Zenith El Primero Chronomaster Grande Date features a case of 46mm, housing the automatic El Primero 4047 with big date display at 2:00 and moonphase indicator at 6:00. The ‘open heart’ display between 8 and 11:00 reveals the beating heart of the movement. Time is indicated through a set of faceted hands coated with SuperLuminova SLN C1.
