CoLAB Heritage Chronograph

Step 2: Cases and Dials

CoLAB Heritage Chronograph

Lebois & CoLAB is our collaboration initiative that brings together watch enthusiasts from around the world to collaborate on the development of new watch models. Our first project is Lebois & Co's Heritage Chronograph; the long awaited and much requested re-issue of our 1940's chronographs.

Each watch development process has different phases; design, technical development, prototype and final production. Together we will go through all of these phases, step by step. The most extensive phase, the design phase, will consist of different steps such as the choice of movement, case and dial design, and of course bracelets and/or straps.


A unique watch

An opportunity to collaborate on an exclusive watch


Perks & Benefits

Contributors enjoy interesting perks and benefits

For watch lovers

For and by watch enthusiasts all over the world


Priority ordering

Contributors will have the first right to order

Chronographs: a Practical Invention

A brief ‘why’ of the chronograph watch

Chronograph watches might be the most well-known type of watches. Since their invention by Louis Moinet more than 200 years ago, chronographs have earned their place as the most versatile addition to the field of timekeeping and time measurement. Initially intended as an aid for astronomical observations; later they were actually used for almost everything from exploring space, landing on the Moon, during warfare and in Formula 1 and even to aid pilots and doctors.

Despite the emergence of digital alternatives, they are still very much in demand by pilots and drivers alike, and the desire for mid-century models has led to a huge boom in the vintage watch market.

Chronographs and their scales: the apps of yore
Chronographs were not just made because they were pretty or interesting to look at. They were useful tools. They were then, what today is an app on your phone. Scales were used to display this app. Like a telemeter scale where you can measure the distance to an object or event. Useful during a thunderstorm but also during war to monitor artillery strikes. Or a tachymeter scale where you can measure the speed over a fixed distance. Very useful on the race track (we are pretty sure Max Verstappen uses one..).

And how about a professional application? Doctors had their own app, the pulsometer, where they could measure a patient’s heart rate. The dial indicates how many heartbeats it is calibrated for. For example, ‘graduè pour 30 pulsations’, which means it can measure how long it takes to count 30 heartbeats. The scale then indicates how many heartbeats this is per minute.

Fun fact; have you ever seen these long markers at 3, 6 and 9 minutes on a chronograph? This was done to help people monior the length phone calls in payphones. In the 1940s and 1950s, if you used a payphone, you got three minutes of talk time. When these three minutes were over, the connection was simply cut off. With the help of the chronograph, people knew exactly when they had to put in extra money or end their phone conversation.

Want to learn more about chronograph dials? Check out Principaux types de chronographes expliqués par leurs cadrans, 1952 (translated: ‘Main types of chronographs explained by their dials, 1952’) by FHS.


New Life for a Classic Logo

We reinterpreted Lebois & Co’s original logo

When we breathed new life into Lebois & Co in 2014, this included the creation of a new logo. However, the new logo is sleek and modern and we don’t think it fits a vintage inspired watch like the Heritage Chronograph. Therefore, especially for this watch, we redesigned the old logo. Again, we have stayed as close to the original as possible and in our opinion, the result is worth it! See below.

Cast Your Vote: Case Concepts

Choose your favorite case out of three pre-selected concepts

To start our designer Matthieu Allègre has done extensive research into the cases of past Lebois & Co models. From there he has made 6 case concepts from which we have chosen 3 to present to you. From these 3 we invite you to choose the case that you think will fit our Heritage Chronograph the best. For each option, we are going to investigate with our case manufacturer if we can have two bezel options; a sloped and a stepped bezel. A little background on each case concept:

  • Concept 1: An unconventional but interesting one. Straight and faceted lugs with thin brushed sides and pushers which are the same shape as the top of the lugs. This concept is inspired by an interesting Lebois & Co vintage piece which had an almost identical twin at a famous brand in the 1940’s.
  • Concept 2: Classic explorer brushed lugs with polished bevels to play with the light. This kind of shape might be the most used shape since the 1950’s. The challenge was to draw with pushers that followed the shape of the lugs to add a touch of modernity.
  • Concept 3: The perfect mix between modern and vintage. Again a famous vintage shape from the 1950’s and 1960’s. The cut on the bevel give this concept a nice new look without changing the main spirit. This case is also textured with a variation of thin brushed and polished details.

Ready? Let’s do it! Take a look at the 3 case concepts we pre-selected. Use the zoom function to discover the differences. This works by clicking on the appropriate picture. Then, vote for the case concept you like best. Feel free to use the comment section at the bottom of this page to explain your choice.

Vote the case you like best:


with straight, faceted lugs

129 Votes

with curved, explorer lugs

352 Votes

with straight, faceted lugs

71 Votes

Cast Your Vote: Dials

Choosing a dial for each layout

Over 1,700 votes have been casted on choosing from the different models from the vintage archives in Step 1 of this CoLAB project. The clear winner is the salmon colored dial which was the first watch on the list. Second and third place go to number 5 – cream dial and number 6 with the off-white sector dial. Based on your votes and feedback in Step 1 we decided to design 4 dial layouts (not 3 as stated in the video which we shot a few days before this decision ;-)). First layout is a multiscale (tachymeter, telemeter and minuterie) with applied indexes which will be made in salmon color. Then a cream dial with simliar multiscale but in multiple colors. Third layout is a sector dial in off-white. And fourth… a surprise! A pulsation dial. Although we haven’t found any vintage Lebois & Co chronographs with this kind of layout yet, we still think it belongs in the line-up. The pulsation dial will be made in the color that will be most voted for.

Salmon dial with tachymeter, telemeter scale and minuterie

Choose between a full central sun brushed (1A) and a circular brush mixed with sandblasted at the middle and between the minuterie and telemeter scale (1B). Click the images to zoom in and see the details.



Full central sun brushed salmon dial, with tachy and telemeter scale

183 Votes


Circular brush mix with sandblasted salmon dial, tachy and telemeter

302 Votes

Cream dial with multicolored scales

Choose between a sandblasted cream dial with multicolored scales (tachymeter, telemeter and minuterie) with silver subdials (2A) or subdials in dial color (2B). Click the images to zoom.



Sandblasted cream dial with silver subdials

327 Votes


Sandblasted cream dial with subdials in dial color

112 Votes

Off-white sector dial with tachymeter

Our interpretation of the popular off-white sector dial with black print and blue tachymeter scale. Choose between a full central sun brushed (3A) or sandblasted dial (3B). To see the difference, zoom in by clicking on the images.



Sector full central sun brushed

369 Votes


Sector with sandblasted dial

86 Votes

Pulsation dial

Surprise! A genuine pulsation dial. ‘Graduè pour 30 pulsations’, meaning you start the chronograph and stop as soon as you have counted 30 heartbeats with your patient. The chronpgraph’s second hand then points to the amount of heartbeats per minute on the pulsometer scale. The dial has the typical Lebois & Co style azurage pattern behind the indexes.

Choose between a sand blasted off-white dial (4A), a central sun brushed black dial with silver subdials and silver azurage (4B) or a central sun brushed black with gold print (4C).



Sandblasted off-white dial

190 Votes


Black dial, silver subdials

75 Votes


Black dial with gold print

34 Votes


Update: July 18, 2021
Based on your the outcome of the Quick Polls we have added two new dials proposals (4C-v2 and 4D) for the pulsation dial layout.

Choose between a sand blasted off-white dial (4A), a central sun brushed black dial with gold hands and print (4C-v2) or a central sun brushed salmon dial with blue hands (4D).



Sandblasted off-white dial

79 Votes

Black dial with gold hands and print

69 Votes


Salmon dial with blue hands

206 Votes

Quick Poll

You talk, we listen

From time to time, we pick up great ideas from the comments and feedback from the community. We present them as a Quick Poll right here to see what the rest of you think.

Would you prefer the 'TACHYMÈTRE’ text in the tachymeter scale on dial 1 and 2 instead of ‘BASE 1000’?

View Results

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Closed polls
The polls below have been closed and processed.

Should we propose a salmon colored pulsation dial?

  • Yes (87%, 122 Votes)
  • No (13%, 18 Votes)

Total Voters: 140

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How about gold hands on dial 4C?

  • Yes (57%, 71 Votes)
  • No (43%, 53 Votes)

Total Voters: 124

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Project Timeline


April 22, 2021 Project launch and choosing inspiration + movement
July 5, 2021 Cases and dials
October, 2021 Presenting the results in 3D and technical details
November, 2021 Pre-order Round 1 (pre-prototype)
January, 2022 Prototype evaluation
February, 2022 Pre-order Round 2 and start of final production

The above timeline is an estimate and can be adjusted if necessary.

Virtual Coffee Catch-up

Talking watches and project progress: register for our virtual coffee meetings

Don't forget to brew your own cup of coffee beforehand 😉

In the Media

Check what the media are saying about our project

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