MB&F LMX

The 10-Year Evolution: From LM1 to LMX

To understand the LMX, one must first understand the disruption caused by the original Legacy Machine N°1 in 2011. At a time when MB&F was known for watches that looked like fighter jets and spaceships, the LM1 was a love letter to the 19th century. It asked: 'What would MB&F have created 100 years ago?' The answer was a suspended balance wheel, dual independent time zones, and a vertical power reserve. The LMX takes that foundational DNA and turns the volume up to eleven.

The 'X' in LMX stands for both the Roman numeral ten and the concept of 'crossroads.' It marks a decade of the Legacy Machine collection, but it also represents a intersection of the various innovations seen in the LM Perpetual, the LM FlyingT, and the LM Thunderdome. It is, in many ways, the 'Greatest Hits' album of the brand, but one where every track has been remastered with new technology.

Architecture and Case: The 'Bubble' Reality

Let’s address the elephant in the room: the dimensions. On paper, a thickness of 21.4mm sounds absurd. It is thicker than most diving watches and nearly double the thickness of a Rolex Submariner. However, the LMX utilizes a design trick that MB&F has perfected. The case-band itself—the metal part of the watch—is quite thin. The majority of that 21.4mm height is comprised of a massive, highly-domed sapphire crystal.

In practice, this means the watch doesn't feel like a lead weight on the wrist. Because the sapphire is transparent, the visual mass of the watch is significantly reduced. When wearing it with a linen shirt or a loose sweater, the 'bubble' peeks out, but it doesn't feel cumbersome. The lug-to-lug measurement of 51mm is the true hero here. By keeping the lugs short and curved, MB&F ensures that the watch sits snugly against the wrist bone, preventing the 'wobble' that often plagues top-heavy timepieces.

Dial and Legibility: Dual Time for the Modern Nomad

The LMX features two independent time zones displayed on white lacquered dials. What makes the LMX unique compared to the original LM1 is that these dials are tilted at a 50-degree angle. This is a functional masterstroke. When you are driving, typing at a laptop, or sitting in a boardroom, you don't need to rotate your wrist to read the time. You simply glance down, and the tilted dials meet your eye line perfectly.

The dual-time functionality is truly independent—meaning you can set one dial to 10:15 and the other to 10:45, a necessity for traveling to regions with half-hour offsets like India or parts of Australia. Each time zone is controlled by its own crown (one at 2 o'clock, one at 10 o'clock), which also serves to wind the movement and set the time. The tactile feedback of these crowns is buttery smooth, a testament to the engineering of the LMX engine.

The Movement: A Seven-Day Powerhouse

Inside the LMX beats a bespoke engine that is a marvel of symmetry. While the LM1 had a 45-hour power reserve, the LMX pushes this to a staggering 168 hours, or seven days. This is achieved through three barrels arranged in a triangular formation, which are visible through the sapphire caseback. For a manual-wind watch, a seven-day reserve is a game-changer. You can set and wind the watch on a Sunday night and not touch it again until the following Monday.

The power reserve indicator itself is a hemispherical display at 12 o'clock. It offers two ways to read the remaining energy: one side shows a numbered scale (1 to 7), and the other shows the days of the week. This allows the wearer to choose how they interact with the watch's autonomy. The rotating nature of this hemisphere adds another layer of three-dimensional depth to the dial side.

The Floating Balance: Horological Theater

The centerpiece of the LMX is the 13.4mm balance wheel. It is suspended by a double-arched bridge that has been polished to a mirror finish. Watching the balance oscillate at 18,000 vph (2.5 Hz) is a meditative experience. This is a 'slow' beat rate compared to the modern standard of 28,800 vph, but the slower speed is intentional. It allows the eye to follow the movement of the hairspring and the screws on the balance rim.

From a finishing perspective, the LMX is flawless. The bridges feature hand-applied Côtes de Genève, and the internal angles—those sharp, 'V' shaped joins that machines cannot replicate—are polished by hand. Even the gold chatons, which hold the jewels in place, add a touch of 19th-century luxury to an otherwise futuristic movement architecture.

Daily Wear: Surviving the Week

I wore the LMX Titanium for seven days in London. In a city of commuters and crowded Underground trains, the height of the watch was my primary concern. I found myself instinctively tucking my left arm behind my back when passing through ticket barriers or narrow doorways. It is not a 'set and forget' watch; it requires an active awareness of your surroundings.

However, the comfort was superlative. The grey alligator strap is supple, and the titanium deployant clasp is well-balanced. Legibility in low light is the only real drawback. There is no lume on the LMX, and the thin gold hands can get lost against the green CVD-treated plates in dim restaurants. But then again, one doesn't buy an MB&F to tell the time in the dark; one buys it to celebrate the passage of time in the light.

Investment and Collectibility

The LMX was released in limited runs: 33 pieces in Grade 5 titanium and 18 pieces in 18k red gold. As with most MB&F 'anniversary' or 'final' editions, demand immediately outstripped supply. In the current market, MB&F is seeing a surge in interest from younger collectors who value 'indie' watchmaking over the traditional 'Big Three.' The LMX is currently trading at a premium on the secondary market, and given its importance in the brand's timeline, it is likely to remain a stable, if not appreciating, asset.

Final Thoughts

The MB&F LMX is a triumph of three-dimensional design. It manages to be a technical powerhouse with its 7-day reserve and dual-time complexity, while remaining a piece of wearable art. It is a watch for the collector who has grown bored of the integrated-bracelet sports watch craze and wants something that feels truly 'special.' While its height makes it a 'sleeve-killer,' the joy of looking down and seeing that massive balance wheel beating over your wrist is a sensation no other watch can replicate. It is the ultimate 10th-anniversary gift, not just to the brand, but to the enthusiasts who have followed them for a decade.