Heritage Chronograph Atelier 324.549 ‘Watchprosite 25th Anniversary’
Limited edition Heritage Chronograph created exclusively for the WatchProSite 25th Anniversary – featuring a handcrafted Grand Feu enamel dial and Swiss column wheel chronograph movement.
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DESCRIPTION
Crafted to celebrate the 25th anniversary of WatchProSite, this special edition Heritage Chronograph by Lebois & Co is a tribute to horological passion, community, and craftsmanship.
At the heart of this limited edition is a Swiss-made Grand Feu enamel dial, handcrafted by Donzé Cadrans in Le Locle. It features a multi-part construction with individually produced subdials, layered colors, and a hidden “Purists 2001” signature which is only visible at certain angles. The enamel dial is paired with a Swiss column wheel chronograph movement from La Joux-Perret, visible through the exhibition caseback.
The P25 edition is available exclusively to the WatchProSite community and will not be publicly listed. Each piece will be made to order, based on final preorder quantities, ensuring exclusivity and personal relevance to those who helped shape this collaboration.
SPECIFICATIONS
MATERIAL
DIAMETER
THICKNESS
CASEBACK
CRYSTALS
LUG-TO-LUG
LUG WIDTH
WATER RESISTANCE
316L STAINLESS STEEL
39 MM
10,9 MM / 14,3 MM
SCREWED DOWN
DOUBLE DOMED SAPPHIRE
47,35 MM
20 MM
5 ATM / 50 M
MOVEMENT
CALIBER
TYPE
WINDING
CHRONOGRAPH
POWER RESERVE
VIBRATIONS
JEWELS
LC-450
MECHANICAL
HAND-WOUND
COLUMN-WHEEL
60 HOURS
28,800 VPH
23
A Journey into Enamel
Behind every enamel dial lies a process shaped by patience, fire, and unforgiving precision. From raw copper to luminous Grand Feu, this photo series documents each stage of the creation — revealing what it truly takes to transform elemental materials into a timeless watch dial. Each step is handcrafted in Switzerland by master artisans. No shortcuts. No second chances. Only the flawless remain.
The base takes shape
A thin copper disc is cut and formed to match the dial’s exact curvature. This blank will carry not only layers of enamel, but the weight of precision.
Anchored by hand
Two small copper feet are manually pinned and soldered in place. They allow the finished dial to mount perfectly to the movement — misalignment is not an option.
Purified by hand
The raw enamel powder — made from crushed mineral glass — is ground and washed in water to remove impurities. This slow, tactile process ensures a clean, even surface after firing.
The first coat
A thin layer of enamel is applied to both sides of the dial. This isn’t aesthetic — it balances internal tension during firing. Enamelling on both sides is essential for stability.
Fired at 800°C
The dial enters the kiln. At this stage, it's just enamel powder on copper — but under intense heat, glass begins to fuse, and the surface gains depth. Most dials don't survive the first few firings.
Printed, layer by layer
Each color is pad-printed one by one, aligned with extreme precision. On a curved enamel surface, any shift — even a fraction — means the dial must be scrapped.
Three parts, one dial
This dial isn’t a single piece. The subdials are produced separately, then set into place and filed flush. The result: perfect integration, made invisible by skill.
Only the flawless remain
After the final firing, each dial is checked under magnification and projection. Print tension, shape, and enamel consistency must be perfect — or it's rejected.
The final surface
The result: a luminous, tension-free dial, deep in tone and rich in character. From copper to color, every step leaves its mark — even the invisible ones.
FAQ
Please find the frequently asked questions below. If your question isn’t listed, feel free to contact Bill, one of the moderators, or Lebois & Co directly.
How will the purchase be handled?
- All purchasing and payment will be handled directly through Lebois & Co’s website.
- WPS will not act as a broker or intermediary, and you will not send money to any forum member.
- You will be redirected to an official ordering page once preorders go live, ensuring secure and traceable transactions.
What are the payment options and terms?
Lebois & Co offers two payment options for ordering:
-
Pay in Full
Pay the full amount of EUR 5,400 at the time of order. -
50% Deposit
Secure your order with a 50% deposit. The remaining balance is due prior to shipment.
All prices are excluding VAT or applicable duties/taxes, which will be added at checkout based on the shipping country. Payment methods accepted: major credit cards, wire transfer, and crypto.
What happens if the project is cancelled or not completed?
- If the watch cannot be produced or delivered, refunds will be issued according to Lebois & Co’s terms.
Can I choose a specific limited-edition number (e.g., to match my Montblanc Minerva)?
-
Each caseback will be engraved with WATCHPROSITE and 25TH ANNIVERSARY, along with the engraving “1 OF XX”. The final “XX” will reflect the total production quantity confirmed after the preorder window. The total number of watches has not yet been finalized and will be set once we go into production.
-
In addition, every watch will carry a regular Lebois & Co serial number to ensure unique identification for service, registration, and authenticity purposes. These serial numbers are allocated by Lebois & Co and cannot be customized.
Will the case resemble the Minerva design?
- Yes. The design is directly inspired by vintage Minerva aesthetics, including case shape, finishing, and proportions. It’s a key part of what defines the P25.
Will there be an open caseback?
- Yes. The P25 will include an exhibition caseback, allowing a clear view of the movement inside.
When is the watch expected to ship?
- Delivery is expected early 2026, depending on final production timelines and demand. Updates will be communicated throughout the process.
When do we need to pay?
- Payments will follow one of the two options noted above.
- For those choosing the deposit route, you’ll pay 50% upfront when preorders open, with final payment due prior to shipment.
