Beginning with a blank sheet of paper, MB&F and independent Irish watchmaker Stephen McDonnell have completely reinvented that most traditional of horological complications: the perpetual calendar.

First launched in 2015, the LM Perpetual has been since crafted in red gold, platinum, white gold, titanium, yellow gold and palladium. In 2023, a new variation joins the family – the LM Perpetual Stainless Steel, carrying a rich salmon-coloured plate.

The steel and salmon combination being a first for MB&F. The new edition also inherits the ergonomic corrector pushers first seen on the LM Perpetual EVO editions.

LM Perpetual features a fully integrated 581-component calibre − no module, no base movement − with a revolutionary new system for calculating the number of days in each month. And it holistically reinterprets the aesthetics of the perpetual calendar by placing the full complication on dial-free display underneath a spectacular suspended balance.

Maximilian Büsser, Creative Director MB&F states, “This fully integrated, purpose-built movement of Legacy Machine Perpetual has been designed from scratch for trouble-free use: no more skipping dates or jamming gears, and the adjuster pushers automatically deactivate when the calendar changes”

The new complication looks sensational and can be fully appreciated dial-side is just one of the many benefits offered by the new movement, controlled by a mechanical processor.

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