Legacy Machine Perpetual SS

The LM Perpetual SS (03.SL.S) is a horological masterpiece that marries innovative design with technical excellence. Crafted from stainless steel, its 44 x 17.5 mm case houses a revolutionary perpetual calendar developed for MB&F by Stephen McDonnell, featuring a dial-side complication and mechanical processor system architecture with an inbuilt safety mechanism.

This manual-winding timepiece boasts a bespoke 14mm flying balance wheel and superlative hand finishing, reflecting 19th-century style. It offers a power reserve of 72 hours and comprises 581 components and 41 jewels.

The LM Perpetual SS's mechanical processor uses a default 28-day month and adds extra days as required, ensuring fool-proof operation. Its 3-dimensional architecture showcases the intricate mechanism, while the perpetual calendar function allows independent adjustment of hours, minutes, day, date, month, and leap year without special tools. This watch redefines traditional complications with its seamless integration of display and mechanism, offering a depth and 3-dimensionality rarely seen before.