Zenith El Primero 19.0130.400

ZENITH El Primero chronograph Epervier reference 19.0130.400, Switzerland around 1988, self winding, stainless steel/gold combined, screwed down case back, unidirectional revolving bezel with 60-minutes graduation, black dial with luminous indices and silvered sub-dials, date, 12 hours and 30 minutes counter, calibre 400, 31 jewels, diameter approx. 39 mm, overhaul recommended at buyer's expense, condition 2-3, property ofa collector