MB&F x H. Moser LM101 & H. Moser x MB&F Endeavour Cylindrical Tourbillon

In a spirit of sharing, while cultivating the notion of strength in unity, H. Moser & Cie. and MB&F co-signing a pair of creations whose DNA blends the main characteristics of each. Two models, available in several versions and issued in 15-piece limited series. This number is a nod to the 15th anniversary of MB&F as well as honouring the 15th anniversary of the relaunch of H. Moser & Cie. 

Maximilian Büsser says: ”When I called Edouard to tell him that I wanted to collaborate on a creation, I mentioned that I really liked the double balance-spring, the Moser fumé dials and the Concept watch series. Edouard immediately told me that he would let me borrow these features, but on condition that he could also reinterpret one of my machines. After an initial moment of surprise, I gave it some thought. Being 50% Indian and 50% Swiss, I am firmly convinced that mixing DNA creates interesting results, so why not try the experiment in watchmaking? I therefore agreed and suggested the FlyingT model, which is particularly dear to my heart.“

MB&F × H. Moser – LM101

The Legacy Machine 101 distils the very quintessence of mechanical watchmaking: the balance wheel, the power reserve and the passing of time. It is therefore no coincidence that MB&F has chosen to revisit this model – one of the purest and “simplest” in its collection – since it is indeed minimalism that guided the creation of the LM101 MB&F × H. Moser model. Like H. Moser & Cie. and the “back to basics” approach embodied in its Concept watch series, MB&F has chosen to remove its logo and return to its roots and indeed to the very origins of horology, when only the movements were signed. 

In the same understated spirit, it has abandoned the floating domed subdials to display the hours and minutes as well as the 45-hour power reserve by means of hands placed directly on the main dial. The fumé dials borrowed from H. Moser & Cie. can thus be expressed in complete freedom, also enhanced by a refined bezel. Four fumé dials have been chosen for the LM101 MB&F × H. Moser: Red fumé, Cosmic Green fumé, Aqua Blue fumé and, of course, the famous Funky Blue fumé. Topped with a domed sapphire crystal, the 40mm case is made of steel, for only the third time in the history of MB&F.

The mesmerising large suspended balance wheel continues to take centre stage, albeit completely redesigned on the LM101 MB&F × H. Moser in order to highlight the beauty of the fumé dials. This beating heart, which represents the quintessence of watchmaking in the eyes of Maximilian Büsser, has been fitted with a double balance spring produced by Precision Engineering AG. Thanks to this pair of matching balance springs, the displacement of the point of gravity undergone by each spring as it expands is corrected, significantly improving precision and isochronism in a continuous quest for perfection. In addition, the paired balance springs also reduce the friction effect normally encountered with a single balance spring, resulting in optimised isochronism. 

Through the case back, the curved sapphire crystal reveals the ‘engine’ driving this timepiece. Unlike the base movement of the Legacy Machine 101, of which the finishes were determined by co-creator Kari Voutilainen, the aesthetics of the calibre that powers the LM101 MB&F × H. Moser is more contemporary, with a subtle NAC treatment to enhance its beauty. (Price CHF 53.000)

H. Moser × MB&F – Endeavour Cylindrical Tourbillon

H. Moser & Cie. has borrowed from MB&F the concept of three-dimensional movements, a strong element of the Geneva Maison’s identity, protected by a sapphire dome and featuring a one-minute flying tourbillon that rises above the main dial through a ventricular opening appearing at 12 o’clock. Benefiting from the expertise of its sister company Precision Engineering AG, H. Moser & Cie. has equipped its tourbillon with a cylindrical balance spring, the same as that developed by Precision Engineering AG for MB&F’s LM Thunderdome.  

Invented in the 18th century, the cylindrical balance spring is reminiscent of a worm-or corkscrew, rising perpendicularly around the upper rod of the balance staff. Commonly used in historical marine chronometers at the time, it offers the advantage of developing concentrically, and therefore geometrically, since it works perfectly along the axis of its pivots. This gives it a significant advantage over the flat balance spring, whose opposite ends tend to exert forces on the pivots, despite the Philips or Breguet terminal curves which were specifically developed to partially correct the non-concentric opening of the balance spring. Fitted with a Breguet overcoil at both attachment points, the cylindrical balance spring reduces pivot friction and greatly improves isochronism. Due to its specific shape, the cylindrical balance spring is far more difficult to produce and takes ten times longer to make than a traditional balance spring.

Another reference to MB&F’s identity lies in the tilted dials, which H. Moser & Cie. has adopted for its hour and minute subdial. This is inclined at 40° so that the owner of the watch is the only one to whom it reveals the secret of time, and mounted on a conical gear train ensuring optimal torque transmission from one plane to the other. 

As Edouard Meylan explains: “We have Moserized the MB&F universe by developing a sapphire subdial, which melts into the background so as to highlight the beauty of our fumé dials. And to preserve the purity and elegance of this true work of horological art, we have inscribed our logo like a watermark on the sapphire subdial, thereby underlining the personal character and intimate relationship binding it to its owner“.

Available in five different versions, the Endeavour Cylindrical Tourbillon H. Moser × MB&F model comes in a 42mm steel case topped by Funky Blue, Cosmic Green, Burgundy, Off-White or Ice Blue dials, all of the fumé variety. (Price CHF 79.000)