The two chronograph mechanisms within the movement are connected by a ‘Twinverter’ switch that allows for selection between both split-second and lap timer modes, something never previously achieved in a chronograph.
The twin chronograph displays indicate seconds at the 9 o’clock and 3 o’clock positions and minutes at the 11 o’clock and one o’clock. Each can be started, stopped and reset independently with separate pushers on either side of the case.
A fifth pusher at the nine o’clock activates the ‘Twinverter’, inverting the start/stop function of each chronograph. This allows two stopped chronographs to be started simultaneously or two running chronographs to be stopped together. If only one chronograph is running it can be stopped while the other is started instantaneously.
Northern Irish watchmaker Stephen McDonnell – who previously re-engineered the perpetual calendar for the brand’s LM Perpetual in 2015 – has spent the past five years perfecting the calibre, MB&F’s 20th unique movement in 17 years.
His back-to-the-drawing-board approach also allowed McDonnell to improve on the energy efficiency and precision of the chronograph.
The watch is housed in a zirconium case, water resistant to 80m and protected from shocks by an internal ‘FlexRing’ damping system. The LM Sequential EVO is available with either orange CVD or black PVD dial plates via MB&F retailers, priced $180,000 USD.
In other watch news, Rado adds chronograph to Captain Cook collection.