Zenith A277 Chronograph on Gay-Frères BraceletZenith chronographs have always had a special place in the heart of collectors. The A277 began production in the early 60s and ran until the 1970s and we have a mk2 example on offer today. The case is in great condition and has pump pushers and oversized winding crown. The black dial has great patina on the hour plots and the bezel has faded to a deep grey. This A277is fitted with its very rare original double signed Ladder bracelet that was