Produced in cycles where one cycle creates the next. 


100% made in-house in Switzerland. All components locally sourced.


Made from 100% PuReSteel® recyled 316L stainless steel. 


Sustainability score. 2.09x more than a comparable series watch.

Key features

The design approach

The CB01-GMT is the new chapter of the CB01 story, originally designed with a skin-diver case, a popular watch case in 1960s and 1970s. 

The CB01-GMT has been designed to re-use the same toolings as the CB01 to avoid producing a new ones thereby saving a lot of energy. The technical conception makes the production processes even simpler and less energy and material consuming than the ones for the CB01. Like for the CB01, a repurposed movement has been used, sourced from a stock of unused Soprod C125 GMT automatic movements, some of which officially certified chronometers.

Like the CB01, the CB01 GMT is simple and "raw". A graphic, robust and sustainable tool-watch.

I am GMT

"I decided to use the iconic arrow hand commonly used for the GMT function because it clearly, and without possible doubt, claims the function". 

Why a GMT?

The GMT is one of the most simple and useful complications in a globalized world. The better way to intuitively read 2 time zones at the same time.

The GMT is also a typical tool-watch function (originally created for cave explorers as an AM/PM indicator) and as  reliable as a time-only watch. From a design point of view, it’s a graphic function (additional hand) and the time function can be used in different ways: as a second time zone or as a day/night indicator. The simple, graphic, useful, reliable, qualities are the ones most welcome for a tool-watch.

Raw or black

Vertically brushed PureSteel® or black vertically brushed Pure Steel®

The 1960s. Light Brown

The 1960s were the original skin-diver case era. The lume of the skin-diver watches from this time has become light-brown. The old radium color Superluminova ® allows the CB01-GMT to meet the watches coming from this decade. The white arrow contrasts harmoniously with the lume color and keeps the GMT function easily readable.

The 1990s. Orange

Orange GMT arrow-hands are iconic. On dashboard instruments, manometers and tools, the orange color is commonly used to identify a precise function thanks to its readability. The 1990s evoke the last era of mechanical devices; the first website went online in 1991, then things started to change. Today, displays have become mainly digital.

Meet the Creator

From a young age Cedric Bellon was fascinated by sciences, nature and crafts. He first studied geology and then laureated in product design at « L’Ecole de Design Nantes Atlantique ». At the age of 26 he discovered watch design and sent some concepts to Swiss watch brands. Bell & Ross, TAG Heuer and Longines gave him a chance and became his first clients. From then on, he was hooked by horology and made watch design his full-time career in 2005. Cedric is an advocate for sustainability in the watch industry.


"Through this watch, I try to do my job in a more virtuous way. It aims at pushing the watchmaking industry to question its design and production processes, and consider that changes are needed. And possible.

The CB01 is a tribute to the women and men whose work contributes to a better future, and an ode to craftsmanship and the people of watchmaking. A concrete step towards a more sustainable watch industry".

About Cedric Bellon

The inspiration

From hand-tools to tool watch. In a world dominated by complex digital devices, hand-tools are soothing landmarks which are dedicated to a single purpose, made to age, and not predestined to obsolescence. They embody simplicity and sustainability.

The CB01 is the archetype of the sustainable watch: mechanical, simple, reliable, repairable, timeless…made to stay out of fashion cycles. Naturally gorgeous in its simple function. Taking on a patina over time. Even more beautiful after years of use. 

When I first approached the project, I thought that I just had to use recycled materials to succeed. Soon by developing the watch with Watch Angels we’ve realized that a true sustainable project is much more than that. It's about finding what is needed from an existing “circle”, transform it into a new “circle” and, finally, made it ready for its future “circle”. In fact, to process in a cycle

The CBO1 GMT case-body and dial are made of from 100% PuReSteel® recyled 316L stainless steel produced in Europe. The case-back and buckle are made from repurposed scrap 316L steel from our factory.

The watch


The most sustainable for the planet is, of course, no production at all. The next best thing is to use what is available insetad of producing something new. That's why the CB01 GMT encases a Soprod C125 automatic GMT movement that has been sourced from an unused stock.

The sustainability report

The CB01 G;T achieves a 87.59% sustainability score. The index is based on the weight of each single component. Each score is compared with the theoretical maximum achievable score. The index is an objective value that has been build to measure and compare sustainbility improvements on watch projects. Download the full report from the deep dive section.

The CB01 sustainability concept

The CB01 watches are produced in cycles where every cylcle creates the next. Special attention is given to all the ways to decrease the environmental impact of its production. The main guidelines are:

  • Doing with limited resources (what we already have in the factory, what is already existing...)
  • Less is better (design & specs)
  • Local sourcing for less transport and Swiss social conditions for watchmakers
  • Natural, neutral, recycled and recyclable materials 
  • Repurposing of components and tooling's
  • Design and construction for fast production and less energy consumption.
  • No galvanic and environmentally harmfull processes


Discover the original CB01 project

A tribute to the women and men whose work contributes to a better future, and an ode to craftsmanship and the people of watchmaking. A concrete step towards a more sustainable watch industry".