The Zenith El Primero Chronomaster Grande Date Full Open features a case of 46mm, housing the automatic El Primero 4047B with big date display at 2:00 and moonphase indicator at 6:00. The dial is made of sapphire crystal, allowing for a full frontal few of the self-winding caliber El Primero 4047B. Time is indicated through a set of faceted hands coated with SuperLuminova SLN C1.Reference 03.2530.4047/78.C813 has a stainless steel case & calfskin strap.Update; somewhere along the line the strap was updated to alligator.
