A new movement from the Swiss manufacture La Joux-Perret, the G121 is a new automatic three-hand calibre with a small seconds display, featuring a good power reserve of 68 hours and a proven architecture.
This ultra-precise movement, with 24 jewels and dimensions of 24.6 mm x 4.45 mm, operates at a frequency of 4 Hz and 28,800 vibrations per hour.
Specifically, our highly qualified French watchmakers at the HUMBERT-DROZ workshop assemble the 280 components of the calibre in Besançon before regulating and casing it in March LA.B watches.
Equipped with a stop-seconds function, it boasts extreme precision, 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 fortunate owner.
March LA.B positions itself as a pioneer in "horological responsibility," with the desire to bring together skills and unite forces for a movement 100% machined in Switzerland and 100% assembled in France.
The dial of the MANSART is octagonal, like the case. It is intentionally simplified and features fine, elegant indices.
The M logo is a finely cut appliqué.
The hands are slender to allow the overall design to breathe.
The new MANSART is now equipped with the Swiss automatic G121 movement with small seconds. Its horizontally guilloché dial houses an octagonal sub-dial for an ultra-coherent and elegant look.
All March LA.B watch cases meet meticulously adhered construction standards. Invariably finished with a brushed texture, they capture ambient light to bring your watch to life.
The 10.2 mm thick, 35 mm octagonal case of the MANSART is a true architectural construction.
A stack of angular layers in which is integrated at 4 o'clock an octagonal guilloché crown that corresponds to the shape of the case.
The bracelet is integrated into a lugless case for a more elegant, monolithic look.
The anti-reflective treated sapphire glass, virtually scratch-proof, is slightly flush to maintain a sophisticated unity.



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