MB&F replica
MB&F LM Sequential Flyback EVO – Titanium and Aquamarine Dial
In 2022, MB&F’s LM Sequential EVO won the Grand Prix d’Horlogerie de Genève (Gold Hand) at the Grand Prix des Haute Horlogerie in Geneva, confirming what seasoned collectors already knew: Stephen McDonnell redefined the chronograph’s function with rigorous theory and revolutionary practice. This watch features a dual chronograph architecture, controlled by a sophisticated Twinverter double-position switch, achieving independent chronograph, split-seconds, chronograph, and lap time functions within a 44mm case—such powerful functionality raises the question of why traditional chronographs are so limited in function.
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However, McDonnell’s initial vision went far beyond this. His prototype movement actually included a flyback chronograph system, but perfecting this function took nine months and underwent six complete redesigns. Its complexity prevented its integration with numerous unproven innovative technologies. This ambitious goal was finally realized in 2024 with the launch of the LM Sequential Flyback watch, featuring a classic Legacy Machine case. Now, it joins the sportier EVO series as the LM Sequential Flyback EVO, renowned for its Grade 5 titanium case and striking aquamarine dial.
The addition of the flyback function elevates this already remarkable complication to near-chronograph pinnacle. Standard sequential chronograph configurations require three operations—stop, reset, and restart—to begin a new chronograph sequence, while the flyback function simplifies this to a single press of the reset button while the chronograph is running. This seemingly minor improvement significantly expands its practical applications, especially when combined with dual-frequency converters to simultaneously switch between two chronograph functions.
In terms of aviation chronographs, the essence of a flyback chronograph lies in this: one timer records the total flight time, while another timer measures each segment and resets instantly between segments. For example, in endurance racing, when lap times exceed 60 seconds, traditional split-seconds chronographs become inadequate—flyback chronographs, with their minute counters at 11 and 1 o’clock, can record longer time intervals, while the flyback function enables rapid sequential timing without waiting for time recording. wholesale replica watches
The technological achievements behind this function are remarkable. McDonnell’s integrated jewel-bearing vertical clutch eliminates the amplitude fluctuations common in traditional chronograph systems, while the flyback mechanism itself uses specially designed jewel-bearing rollers—components not available from standard suppliers—to minimize friction that could affect the zeroing function. These innovative technologies constitute five patents within the 621 components and 63 jewels of the sequential movement. A 72-hour power reserve ensures reliable operation even during extended wear.
The EVO version continues MB&F’s signature sporty style: 80-meter water resistance, a screw-down crown, an integrated rubber strap, and the FlexRing shock-absorbing system to protect the movement during sporty wear. Furthermore, this version retains the classic Sequential model’s tilted time display—the sub-dial at 6 o’clock tilts towards the wearer for improved legibility. The flying balance wheel remains at 12 o’clock, its 21,600 vibrations per hour clearly visible, reminding us that both timing systems share the same escapement—a design that allows the watch to achieve such comprehensive timing functions without the timing errors that can occur with multiple independent mechanisms.
For collectors who recognized the importance of the Sequential EVO three years ago, this titanium version with flyback function represents a mature expression of the movement—McDonald’s initial vision finally realized in MB&F’s most exclusive case. fake watches for sale
