ZENITH. A MEN'S 18K YELLOW GOLD CHRONOGRAPH AUTOMATIC WRISTWATCH Model: El Primero Date: Circa 1990's Case reference: 06-0050-400 Movement: Signed, 31-Jewels, Cal.400 Dial: 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 position Case: Signed, polished 18K yellow gold, screw down back Strap: Generic brown leather , generic gilt buckle Size: 40mm Weight: Approx. 81g