Legacy Machine Perpetual EVO: Redefine time with style and robustness.
The Epic of the Legacy Machine Perpetual EVO: Exploring the Parallel Worlds of MB Watchmaking
Discover the LEGACY MACHINE PERPETUAL EVO: a watch that opens doors to imaginary worlds, where every moment becomes an adventure. Designed by Maximilian Büsser, this MB&F creation transcends the boundaries of conventional watchmaking to take you to unique and exciting destinations.
The EVO range marked a turning point with the introduction of the LM Perpetual EVO in 2020. These watches become the indispensable companions of active minds, confidently navigating through every moment of their daily lives. Whether for business or leisure, the LM Perpetual EVO is there to accompany every step with elegance and reliability.
Available in limited editions in zirconium or titanium, the Legacy Machine Perpetual EVO is a fusion of modern aesthetics and cutting-edge functionality. Its 44mm-diameter case, cut from metals with exceptional properties, offers unrivalled robustness. The one-piece “FlexRing” anti-shock system provides additional protection, making this the most resistant watch ever produced by MB&F.
At the heart of the LM Perpetual EVO beats the LM Perpetual engine, designed by Stephen McDonnell. This revolutionary perpetual calendar pushes the boundaries of watchmaking tradition with its innovative mechanical processor, guaranteeing unrivalled precision. Every detail, from the redesigned pushers to the screw-down crown, has been carefully thought out to offer comfort and functionality to every user.
With its sleek design and advanced functionality, the Legacy Machine Perpetual EVO represents the pinnacle of MB&F’s watchmaking expertise. Whether you’re a seasoned watch enthusiast or a passionate adventurer, this watch is not just an accessory, it’s a companion for life.
CALENDAR PROGRAMMING
Conventional perpetual calendars are generally add-on modules mounted on pre-existing movements. The date indications are synchronized by a large lever that crosses the surface of the complication, passing through the center. When the date changes, the lever transmits the information back and forth to the appropriate components and mechanisms. While the interaction of lever and components is admirable, the traditional system is extremely cumbersome, limiting the movement’s construction mode at several key points. It would make it impossible to create a mechanism comparable to that of the Legacy Machine Perpetual.
Designed by Stephen McDonnell and unveiled in 2015, the LM Perpetual engine was – and still is – one of the most innovative perpetual calendars in contemporary watchmaking.
In a traditional construction, all months are assumed, by default, to have 31 days. At the end of months with less than 31 days, the mechanism accelerates through superfluous dates before stopping on the 1st of the following month. Tampering with or adjusting the date during a pass can damage the mechanism, leading to costly repairs. Dates can also jump or skip accidentally, negating the purpose of the perpetual calendar, which is to program for years or decades.
The LM Perpetual is equipped with a “mechanical processor” consisting of superimposed disks. This revolutionary processor takes, by default, the number of 28 days as a reference – logical, since all months have at least 28 days – and adds as many additional dates as necessary. This ensures that each month counts the exact number of days. Accidental jumps are eliminated, making it impossible for the date to pass unnaturally.
What’s more, thanks to a planetary cam, the mechanical processor enables instantaneous setting of the current year, and therefore correct display for all four years of the leap cycle. It is no longer necessary to go through the preliminary sequence of 47 months, as in a traditional perpetual calendar, to reach the correct months and years.
Finally, the mechanical processor includes an integrated safety system that disconnects the quick-set pushers during the date-change process, eliminating any risk of consequential damage.
In 2015, the Legacy Machine Perpetual inaugurated the world’s longest pinion, connecting the flying balance to the escapement on the back of the movement. Since then, this technical feat has been repeated elsewhere in the MB&F collection, namely in the Legacy Machine Split Escapement.
– Titanium editions: edition with ice-blue CVD-treated dial.
Engine
Fully integrated perpetual calendar developed for MB&F by Stephen McDonnell, dial-side complication, mechanical processor with integrated safety system. Manual winding with double barrel. 14 mm-diameter balance wheel with traditional adjusting screws visible at the top of the movement. Exceptional hand-finishing in the style of the 19th century: re-entrant angles to enhance the workmanship, polished corners, côtes de Genève, hand-engraving.
Black dials with SLN-treated numerals and hands (except for leap-year indicator and power reserve).
FlexRing: annular shock absorber placed between the case and the movement, offering protection against shocks along the vertical and lateral axes.
Power reserve: 72 hours
Frequency: 18,000A/h / 2.5Hz
Number of components: 581
Number of jewels: 41
Case
Material: titanium
Dimensions: 44 x 17.5mm
Number of components: 70
Water resistance: 8ATM / 80m / 270 feet
Hours, minutes, day, date, month, leap year by retrograde hand, power reserve indicator
Strap and buckle
Rubber strap, titanium folding clasp
Sapphire lenses
Sapphire lenses on front and back, anti-reflective coating on both sides
