The first movement resulting from the partnership between the Swiss manufacturer La Joux-Perret and the Besançon-based family business Humbert-Droz, the G100 is a new automatic three-hand caliber with date, boasting a generous 68-hour power reserve and a proven architecture.
This ultra-precise movement, equipped with 24 jewels and measuring 24.6 mm x 4.45 mm, develops a frequency of 4 Hz and 28,800 alternations.
Equipped with a Stop Seconds function, it is extremely precise, varying between -4 and +6 seconds per day, and offers a 68-hour power reserve, more commonly known as "Weekend proof," allowing the watch to run from Friday evening to Monday morning without being worn by its lucky owner.
March LA.B positions itself as a pioneer of "responsible watchmaking" with the desire to bring together skills and unite forces for a movement 100% machined in Switzerland and 100% assembled in France.
The BELZA Automatic dial is built with the typical "crosshair" of the 70s.
It is equipped with massive indexes and a set of wide hands filled with Luminova for optimum night or aquatic readability.
The steel date window at 3 o'clock displays numbers in a retro font in white on a black background and in green on every 3rd of the month.
A printed railway track surrounds the whole.
The M logo is a finely cut appliqué while the BELZA logo is in luminova to glow in the dark.
Luminova is applied to the face of the hands.
The BELZA Automatic bezels are made of ceramic, which gives them high scratch resistance and optimal legibility in all circumstances.
They rotate with "120 clicks" for precise time measurement.
March LA.B's interwoven lines are meticulously carved with high precision on the circumference of the edge.
The ensemble is harmonious and finalizes the signature construction of the case.



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