The BONZER is the second March LA.B “surfer” watch.


With its rounder 41 mm 100 meters waterproof stainless steel case the BONZER Electric model combines style and aquatic performances.

The aluminum bezel, thinner than its sister is chiseled on the rim with the March LA.B interlaced M lines as on the screwed crown always located at 4 o'clock. A position that avoids damaging the hands back while twisting them for the "duck dive". The fully brushed case is more scratch resistant and assembled with a raised and domed mineral crystal.

The brushed or sunray dial are built with clean indexes

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 week day can be displayed in french or English.

The brushed screwed back is engraved with the March LA.B horological crest.

The STEEL model is made of a steel sunray dial printed with black markings and railroad inserted in a steel case with a black aluminum bezel.

$827.00 USD
Excl Tax.Shipping calculated at checkout.


• Round 316 L steel case of 41 mm
• Thickness 12.25mm
• Rotating aluminum bezel
• Screw-down crown
• Swiss movement RONDA 517
• Hours, minutes, seconds, date
• Personalized date stamp MARCH
• Steel needles
• Strap width 20 mm
• Domed mineral glass with anti-reflective treatment
• Screwed back
• Water resistant to 10 ATM / 100M
• Leather / silicone / steel strap
• 2 years warranty
• Battery change offered for life in March LA.B stores


March LA.B designs and assembles its watches in France. The Swiss automatic movements we fit into our timepieces are assembled from A to Z in France. In this transparent way, we continue our quest to design watches that are "as French as possible".


Delivery is free from €295.

Express (24 hours) or standard (72 hours) delivery solutions.


Contact us on +33 (0) 1 75 57 93 90

11 a.m. - 7 p.m. Monday to Saturday (UTC +1)

Possibility of distance selling VAD


Borrowing its name from the revolutionary surfboards designed by the Duncan and Malcolm Campbell brothers in the 70s, the BONZER is the latest addition to our range of surfboards.

Faster, more maneuverable and aggressive boards, easy to surf and ideal for all types of waves, our BONZER will also adapt to your everyday life.

Shaped in a 41 mm round case with a controlled thickness, a notched rotating bezel and a screw-down crown for perfect water-resistance, it is available with a steel or silicone bracelet, ideal for spending your life in the water...

In a more refined leather version, it will be perfect for chilling out at the office.


Le cadran de la BONZER électrique est volontairement simplifié et assemblé d’index sobres et élégants.

Un discret chemin de fer est imprimé à l’extérieur des index. Le guichet en acier positionné à 3H laisse apparaitre des chiffres à la typo rétro en blanc sur fond noir et en vert chaque 3 du mois. Le jour du mois peut être affiché en Français ou en Anglais selon votre choix.

Le logo M est une applique finement découpée.

Les aiguilles ont une forme diapason pour encadrer une lecture optimum.

Du luminova est appliqué au-dessous de chaque index des heures ainsi que sur la face des aiguilles.


Les lunettes des BONZER Électriques sont construites en aluminium de couleur.

Elles tournent sur « 120 clics » pour une mesure précise du temps.

Les lignes entrelacées de March LA.B y sont ciselées avec très haute précision sur la circonférence de la tranche.

L’ensemble est harmonieux et finalise la construction signature du boitier.


Well-known for its accuracy and reliability, the RONDA 517 Swiss quartz caliber has been selected as the best choice for many luxury watch brands due to its very high-end performances.

This Swiss movement assembled with a quartz oscillator uses electrical vibrations to keep a very high time accuracy. With the temperature regulation system allowing the movement frequency to be adjusted according to thermal fluctuations, a constant precision whatever the ambient conditions is guaranteed.

In addition to its precision, it is also designed to be extremely reliable and durable. It features a long-life power supply system that enables around 60 months battery life. About 2 weeks before the battery end of life, an indicator called EOL makes the second hand jumping every 4 seconds to tell that battery needs to be changed.


Like our watches, our bracelets are designed with the utmost attention to detail, using the finest materials and the best craftsmen, to perfectly match the lugs of our watches.Very robust, our steel bracelet is made of 3 links that we've cut to make them more angular and match the multiple bevels of our cases.

The interior reproduces the spirit of micro-perforations to optimize comfort in case of extreme perspirationOur silicone bracelets are designed to accompany you in all circumstances. In steel or silicone, all our bracelets are interchangeable without tools, as they are equipped with the presto system.


March LA.B’s “Green Thread” is an omnipresent green signature through subtle details. The number 3 in green on the personalized date recalls the favorite month of the brand's founders. The green lining of the bracelets topstitched with a bridle stitch in the emblematic green color. The luminous green “skeleton” background on automatic versions.
The inside of the emerald green travel box…


This “Green Thread” extends this “grammar of design” that we developed in order to identify our timepieces through precise and redundant aesthetic codes: The crown or winder at 4 o’clock and its guilloché pattern of the intertwined lines of the M of the brand, the seventies typography of the date, the dials without numbers with cut-out indexes, the raised and curved glass, the omnipresent angles on always brushed polished cases.


All these aesthetic and chromatic details, to be discovered intimately, shape the March LA.B thread that leads straight to the heart.