MB&F creations have transported their wearers to destinations that exist only on maps of the imagination: from star-cruisers to deep-sea jellyfish.
The LM Perpetual EVO was launched in three limited editions in zirconium, followed by a titanium edition with green CVD dial-plate, replaced in February 2024 by an ice blue dial-plate. To celebrate the opening of the MB&F LAB in Silicon Valley with retail partner Stephen Silver, the series is joined by a limited edition of 18 pieces in 18K rose gold with an ocean blue dial plate. All editions feature a closely-fitted, integrated rubber strap for the smoothest wearing experience of any MB&F Machine ever.
Although the 44mm diameter is unchanged from its 2015 iteration, the new EVO case design features a no-bezel construction, with the domed sapphire crystal fused directly to the case. The increased openness of this design highlights the equilibrium between the legibility of LM Perpetual EVO’s calendar indications and the cinematic play of the engine components — surmounted by the iconic MB&F hovering balance wheel. This expansive new presentation of the LM Perpetual Engine was no simple design reconfiguration.
The previously circular pushers for adjusting the perpetual calendar have been enlarged into double-sprung oblong actuators, boosting the tactile comfort and ease of adjustment. The LM Perpetual EVO is rated at 80m of water resistance, enabled by its screw-down crown. A small, but essential, detail of implementing a screw-down crown is the débrayage of the winding stem, disengaging the crown from the winding mechanism when it is pushed in and tightened, which eliminates the chance of manually over-winding the mainspring barrel.
An additional new element of the LM Perpetual EVO is the FlexRing: an annular dampener fitted between case and movement, providing shock protection along the vertical and lateral axes. When Stephen McDonnell set out to redesign the perpetual calendar for MB&F, he proposed a system that rethought the entire mechanical basis of the complication. The LM Perpetual uses a “mechanical processor” consisting of a series of superimposed disks. This revolutionary processor takes the default number of days in the month at 28 — because, logically, all months have at least 28 days — and then adds the extra days as required by each individual month.
This ensures that each month has exactly the right number of days, and removes the possibility of the date jumping incorrectly. An inbuilt safety feature disconnects the quickset pushers during the date changeover, so that even if the pushers are accidentally actuated whilst the date is changing, there is no risk of damage to the movement.
In design, in technique, in spirit, Legacy Machine Perpetual EVO has been an evolution of your story with MB&F.
Technical Specifications:
Legacy Machine Perpetual EVO has been created in six versions:
– Zirconium editions: three limited editions of 15 pieces each with a choice of orange CVD dial plate, blue CVD dial plate or black PVD dial plate;
– Titanium editions: with green CVD dial plate or icy blue CVD dial plate;
– Silicon Valley limited edition in 18K rose gold with ocean blue dial plate.
Engine
Fully integrated perpetual calendar developed for MB&F by Stephen McDonnell, featuring dial-side complication and mechanical processor system architecture with inbuilt safety mechanism. Manual winding with double mainspring barrels. Bespoke 14mm balance wheel with traditional regulating screws visible on top of the movement. Superlative hand finishing throughout respecting 19th century style; internal bevel angles highlighting hand craft; polished bevels; Geneva waves; hand-made engravings.
Galvanic black dials with both SLN numerals and hands (except for the leap year and power reserve)
FlexRing: an annular dampener fitted between case and movement, providing shock protection along the vertical and lateral axes.
Screw down crown
Power reserve: 72 hours
Balance frequency: 18,000bph / 2.5Hz
Number of components: 581
Number of jewels: 41
Functions/indications
Hours, minutes, day, date, month, retrograde leap year and power reserve indicators
Case
Material: Zirconium, titanium or rose gold
Dimensions: 44 x 17.5mm
Number of components: 70
Water resistance: 8ATM / 80m / 270 feet
Sapphire crystals
Sapphire crystals on top and display back treated with anti-reflective coating on both faces
Strap & buckle
Rubber strap with matching titanium or rose gold folding buckle.
The LM Perpetual EVO Silicon Valley is a limited edition of only 18 pieces, available exclusively at the MB&F Lab opening soon in Menlo Park with our retail partner Stephen Silver.
Retail price is USD 210,000 + tax.
For more information please visit MB&F