BELZA AUTOMATIC TWIN GREEN Watch
Swell Alert!
Our aptly named BELZA, designed by surfers for surfers, arrives this summer in a TWIN edition, limited to 150 pieces in both Green and Black versions.
A “Twin” is a surfboard equipped with two fins. Faster than traditional single-fin boards, which often lack maneuverability and speed, this design, originally developed in the 1940s, gained widespread popularity in the late 1970s thanks to shapers such as Mark Richards, who won four consecutive world titles riding twin-fin boards.
Inspired by this iconic surfing heritage, the BELZA Twin embodies performance, character, and freedom, both in and out of the water.
Our iconic BELZA has been reinvented.
Its case, now refined with a slimmer profile, has been machined from a precious metal: bronze. A truly living material widely used in the marine world, bronze is highly resistant to corrosion and develops a unique patina over time.
The BELZA Twin in yellow bronze will gradually age through your urban adventures and aquatic pursuits, becoming a charismatic and completely unique timepiece — yours.
When night falls, it comes to life thanks to Super-LumiNova® applied to the hands, hour markers, and dial, ensuring exceptional readability in low-light conditions.
A true copper-toned gem, it is fitted with a green or black ceramic bezel enhanced by bronze-colored numerals.
Last but not least, we have improved the case’s water resistance to reach 30 ATM.
Big-wave surfers, from Nazaré to Waimea, grab your guns…
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.


















