The foundation of the timepiece is the caliber 135-O, which was Zenith’s most successful entry in the observatory competitions (the O specified that it was for the observatory competition, ...

Last year, Swiss watch brand Zenith revisited its heritage and launched some particularly alluring watches that recalled the brand’s rich past. Among them: the immediately successful A384 Revival ...

Zenith’s historic Calibre 135-O chronometer movement got a new lease on life with last week’s unveiling of the Calibre 135 Observatoire Limited Edition, produced in collaboration with independent ...

Watchmaker Kari Voutilainen has restored ten of the most-awarded Observatory chronometer movements in history for a new Zenith limited edition. The project – instigated by auction house Phillips in ...

The fine watch fanatics over at Hodinkee took the wraps off of a collaboration with Swiss watchmaker Zenith last night: a limited-edition El Primero, made to their exacting standards. Boy were they ...

Zenith claims this makes its Defy Lab the world's most accurate mechanical watch. Though portable mechanical clocks have been around since the early 16th century, it wasn't until 1675 that it was ...

The world of horology can be confusing at the best of times and downright exclusionary at the worst. Some of this is deliberate, of course, as brands want to convey a sense of mystery and exclu­sivity ...