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.