Watch the Review

A Closer Look: MB&F LM Perpetual Ti

Our Take

It could be said that no single figure perpetuated the independent watchmaking movement more than Maximillian Busser. From his Opus project during his time at Harry Winston, to the development of MB&F over the last few years, Max reminds us year in and year out through his beautiful machines, what his brilliant watchmaking friends are capable of creating.

In independent watchmaking, MB&F is a true spectacle. From their collaborative creative process to their futuristic design, it seems like every MB&F timepiece pushes horology farther and farther into the future. And that’s exactly why we’re excited to feature another phenomenal watch from the brand, the Legacy Machine (LM) Perpetual in Titanium.

Launched in 2018, this timepiece is the fourth iteration of the LM Perpetual. It bears all of the emblems of the brand’s innovative genius. After all, there’s an argument to be made that this is the first perpetual calendar created with the collector truly in mind. So what do we mean by that exactly?

With the LM Perpetual, many of the usual reliability and functionality issues with perpetual calendars were solved by the ingenuity of Stephen McDonnell. He did this by constructing a movement that does not rely on the standard long lever system or the 31-day month. Rather, the entirety of this perpetual calendar is based on a stacked gears construction and a 28-day month standard. This set-up effectively isolates the day, date, month, leap year indicators, and prevents each function from a hiccup. This design allows collectors to adjust each function independently. No further need to cycle through a year or month to get where you need and no more pressure to keep your perpetual wound. If that wasn’t enough, no more worries about an accidental catastrophe by adjusting your watch around midnight. The pushers on the LM Perpetual disengage automatically, ensuring no costly accidents occur.

While the highlight of the LM Perpetual is McDonnell’s innovative caliber, MB&F makes no sacrifices to its exceptional design game. The flying balance wheel brings all the open worked elements of the perpetual calendar to life as it remains the signature element of the Legacy Machine collection. The use of polished titanium makes this timepiece deceptively light given the enormous maze of complications dialside. Lastly, as with all other titanium Legacy Machine models, MB&F features its stunning iridescent blue green dial.

All in all, the LM Perpetual Ti is legendary for fusing complexity and pragmatism, a high complication with reliability and ease of use in mind. This is the timepiece for watch collectors that want a perpetual calendar without all the anxiety of ownership.

The Details

Brand: MB&F

Model: LM Perpetual Ti

Case: Grade 5 Titanium

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 two mainspring barrels.

Bespoke 14mm flying balance wheel visible on top of the movement.

Superlative hand finishing throughout respecting 19th century style.

Functions: Hours, minutes, day, retrograde date, month, retrograde leap year and power reserve indicator

Build: 581 components / 41 jewels

Power Reserve: 72 Hours

Limited Edition: 50 Pieces