Zenith turns the spotlight on one of its most amazing movements epitomising an almost obsessive quest for precision, in a presentation symbolically timed to coincide with the 100th birthday of watchmaker Ephrem Jobin in late November 2009, the brains and the hands behind this multiple award-winning mechanism.

Like all Zenith movements, the Calibre 135 stemmed from the company’s determination to create ever more accurate and reliable movements – a tradition cultivated since its founding in 1865, illustrated early on by its remarkably accurate pocket-watches, and accentuated by the emergence of wristwatches…