The BELZA is a watch designed and built by surfers for surfers.


We have developed this 200 meters waterproof watch by testing it in the optimal and extreme Côte Basque conditions. Our surfer friend’s community, "Justin, Pierre, Maxime, Clovis, Stéphane and the others..." as Claude SAUTET would say, have meticulously mistreated their BELZA by surfing with it in the sandy La Gravière barrels in Hossegor up to the Avalanche winter mountains in Guethary.

The BELZA 40 mm case is bold and strong with a 32 mm opening surrounded by a large ceramic bezel whose rim is chiseled with the interlaced March LA.B M lines also engraved on the signature screwed crown always located at 4 o'clock. A position that avoids damaging the hands while twisting the hands for the "duck dive".

The massive chiseled indexes are coated with Luminova as well as the wider hands for a better readability.

The stamped date is surrounded by a metal window frame.
The very retro white digits are printed on a black background that displays the number 3 in green once a month.

The case back is made of a gold-colored relief plate representing the famous Villa Belza in Biarritz.

The BELZA is powered by the G100 movement with its comfortable 68 hours power reserve.

The FOREST model is assembled with a green sandy dial, steel indexes printed with tonal markings and railroad in light gray.

€2.096,13 EUR


• Round 316 L steel case of 40 mm
• Thickness 14.5mm
• Rotating black ceramic bezel
• 120 click bezel
• Screw-down crown
• Automatic Caliber La Joux-Perret G100
• About 68 hours of power reserve
• Sandblasted dial
• Hours, minutes, seconds, date
• Personalized date stamp MARCH
• Super Luminova coated steel hands
• 20 mm widths
• Anti-reflective sapphire crystal
• Screwed back engraved BELZA
• 20 ATM / 200M water resistance
• 2 years international warranty


MARCH LA.B watches are designed and assembled in France. Our Franco-Swiss automatic movement integrated into our watches is assembled from A to Z in France. We continue, in this transparent way, to produce watches that are "as French as possible".


The 20 mm colored silicone bracelets are assembled with more resistant screwed bars, just like the 3-link steel bracelets that we have "reshaped" by adding micro cells on the back for better comfort when worn.


Free worldwide shipping for orders over €295.
Express (24H) or standard (72H) delivery solutions.


You can contact us for any advise at +33 (0) 1 75 57 93 90
From 11 a.m. - 7 p.m. Monday to Saturday (UTC +1)

Possibility of "Distance Selling" by phone.


True to our roots, honest with our passions, honest with our vision... we've developed not a "Diver" but rather a "Surfer".

In 1957, an American filmmaker by the name of Peter Viertel arrived in France with a surfboard in his luggage, on the Côte des Basques in Biarritz. With him, the coastal kids - the future "Tontons Surfeurs" - discovered the joys of surfing on the waves of this beach overlooked by a majestic residence, the Villa Belza. Surfing was born.

Borrowing its proud name from this timeless icon, our BELZA was designed with surfing in mind.

With its screw-down crown, silicone bracelet and water resistance to 200 meters, it has all the attributes of a watch destined to spend its life in the water... a dream life!


The BELZA Automatic dial is built with the "cross hair" etched design typical of the 70s and 

features massive indexes and a set of large hands all filled with Luminova for an optimum readability at night or in the water. 

The steel aperture at 3 o'clock reveals retro-style numerals in white on a black background and in green for each 3rd of the month. A printed railway track frames the whole.

The M logo is a finely cut applique, while the luminova BELZA logo glows in the darkness.

Luminova is applied to the face of the hands.


The bezels of the BELZA Automatiques are made of ceramic, making them highly scratch-resistant and easy to read in all circumstances.

They turn on 120 clicks for precise timekeeping, with the interlaced March LA.B lines chiselled with the utmost precision around the circumference of the bezel, creating a harmonious whole that completes the case's signature construction.


Very first movement born with the Swiss manufacture La Joux-Perret and the Besançon family house Humbert-Droz partnership, the G100 is a new three-hand automatic caliber with date, powered with a beautiful 68-hour power reserve and designed with a proven architecture.

Equipped with a Stop Second, this G100 movement is extremely accurate with a time precision range between - 4 and + 6 seconds per day and offers a power reserve of 68 hours usually called "Weekend proof" allowing the watch to keep running from Friday evening to Monday morning without being worn by its happy owner.

March LA.B positions itself as a pioneer of “watchmaking responsibility” with the desire to bring together skills and join forces for a movement 100% machined in Switzerland and 100% assembled in France.


The bracelet that fits all of our classic watches is made of 3 links that we've cut to make them more angular and then match the several watch cases bevels.

The inside details reproduce the micro-perforations spirit in order to optimize wearing comfort in while extreme perspiration.

This 20 / 18 mm fully brushed bracelet is closed with a pretty efficient folding clasp and can be changed without any tools as equipped with the presto system.