ZENITH.A MEN'S 18K YELLOW GOLD CHRONOGRAPH AUTOMATIC WRISTWATCHModel: El PrimeroDate: Circa 1990'sCase reference: 06-0050-400Movement: Signed, 31-Jewels, Cal.400Dial: Signed, white, gilt applied Arabic numerals, black darts hour markers, black outer minute division, gilt sword hands with black inner, gilt centre seconds hand for chronograph, subsidiary dial for chronograph minutes at the 3 o'clock position, subsidiary dial for chronograph hours at the 6 o'clock position, subsidiary dial for seconds at the 9 o'clock position, date aperture between the 4 and 5 o'clock positionCase: Signed, polished 18K yellow gold, screw down backStrap: Generic brown leather , generic gilt buckleSize: 40mmWeight: Approx. 81g