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Since its launch in 2005, Cvstos has been following its own contemporary, aesthetic path, producing imposing, technical timepieces.


Cvstos is an emerging watchmaking brand co-founded in 2005 in Geneva by Sassoun Sirmakes and Antonio Terranova.

Sassoun Sirmakes is the son of Vartan Sirmakes, co-owner of the Franck Muller Watchland Group. When he was 17 and still a student, Sassoun followed in his father's footsteps as a watchmaker, mastering the craft and developing the family's jewel-setting workshop.

He learned all about techniques and watchmaking design in the family business, where he also gained experience in business relations.

He was aged just 20 when, in 2004, he met a talented designer, Antonio Terranova.

Terranova was born in 1967 in La Chaux-de-Fonds. He had a background in engineering and has never left watchmaking. He had previously worked with Cartier, Piaget, TAG Heuer, Breitling and Zenith.

The newly-formed partnership created the CVSTOS brand; in 2005, it presented its first collection, including a dual time band model, a chronograph and a tourbillon.

In 2009, the pair moved into new premises in Geneva city centre, with a lounge showroom, the workshop and the management all under one roof. The business expanded, as did their collections and unique timepieces in a radical, contemporary style.

Cvstos founded in Geneva.
Presentation of the ‘Pagani Engineered by Cvstos.
Manufacture moves to Geneva city centre.
Lounge-showroom store opens next to the workshops.
Creation of the ‘Challenger Pilot.

Since its launch in 2005, Cvstos has been following its own contemporary, aesthetic path, producing imposing, technical timepieces. The brand mainly uses the tonneau format for a whole range of complications, all of which are clearly visible.

Taking just as much care with design as with its movements, Cvstos is positioned at the forefront of non-conformist, independent watchmaking.



With seven references ranging from the chronograph to the dual-time band, the tonneau-shaped Challenge line offers an in-depth view of its movement, along with hour markers inscribed directly on the watch's sapphire crystal. It also includes two QPs with round cases, and a watch featuring a tourbillon.


In an imposing 59x49 mm gold or steel case, this two-model collection features a chronograph with a futuristic style. Also available with tourbillon.


Featuring a tonneau case, this contemporary steel and titanium collection includes a skeleton movement, hours, minutes and seconds.


This ladies' tonneau collection offers openwork dials and white or black diamond-studded cases.