Zenith - an El Primero Chronomaster Open XXT chronograph watch, 45mm. Zenith - an El Primero Chronomaster Open XXT chronograph wrist watch. Stainless steel case with exhibition case back. Case width 45mm. Reference 03.1260.4021. Signed automatic calibre 4021. Silvered dial with Roman numeral hour markers, subsidiary recorder dial to three, power reserve indicator to six, aperture exposing workings between nine and twelve. Fitted to a signed black alligator strap with stainless steel deployant clasp. Box and papers.
