MB&F’s Legacy Machine Perpetual EVO 2025 pushes one of horology’s most revered complications into new territory—combining the award‑winning perpetual calendar movement with a case engineered for an active lifestyle.
A NEW CHAPTER FOR A PERPETUAL ICON
Building on Stephen McDonnell’s revolutionary perpetual‑calendar “mechanical processor,” the LM Perpetual EVO 2025 retains its foolproof system—which defaults to a 28‑day month and only adds extra days when required—while embracing a radically sport‑oriented architecture.
At the heart of its robustness is the FlexRing, an annular dampener machined from a single block of stainless steel and fitted between case and movement. It absorbs shocks on both vertical and lateral axes, making the EVO 2025 the toughest Legacy Machine to date.
Sporting a 44 mm case in zirconium or titanium (17.15 mm thick) with 8 ATM water resistance, the EVO’s open‑worked dial and massive 14 mm balance wheel remain visible under anti‑reflective sapphire. Redesigned, ergonomic pushers allow day, date, month, leap‑year and power‑reserve setting without tools—a must for those who never leave their watch behind
THE TECHNICAL HEART
Inside, the hand‑finished engine boasts 581 components, double mainspring barrels for 72 hours of power reserve, and a bespoke balance with four timing screws. This movement first earned the EVO line its GPHG Best Calendar Watch trophy in 2021, proving that performance and precision can coexist.
For full specifications and purchasing information, explore the official MB&F Legacy Machine Perpetual EVO collection.
