BREITLING Chrono-Matic chronograph reference 2130, Switzerland around 1977, self winding,...

BREITLING Chrono-Matic chronograph reference 2130, Switzerland around 1977, self winding, stainless steel, screwed down case back, winding crown outside 9, bidirectional revolving bezel with 60-minutes graduation, black dial with silvered sub dials, 30 minutes- and 12 hours-register, date at 6, calibre 11, bridge signed HAMILTON, winding by micro-rotor, incablock shock-absorber, diameter approx. 38,5 mm, condition 2-3, property of a collector