![](https://zenith-watches.bynder.com/m/221ac0cdb3e7ae06/Digital_RGB-1-SOLDAT-2_ZENITH-Icons_A277-566D452_4x5.png?im=Resize=150;Blur=4&q=1)
A277
A chronograph that predates the El Primero by a year, the A277 was produced from 1968 to 1970 and features a “reverse panda” dial with a black rotating bezel featuring both dot and baton markers. These types of markings inspired the engraved black ceramic bezel of the CHRONOMASTER Sport.