The MB&F Legacy Machine – Perpetual Calendar, first introduced in 2015 and masterminded by Stephen McDonnell, redefines the conventional approach to perpetual calendars. Unlike its predecessors, McDonnell’s ingenuity revolutionized the complication by ensuring that each month adheres to a fixed 28-day cycle, dynamically adjusting for the correct number of days in each respective month. This innovative solution eliminates the need for skipping days and seamlessly adds only what is necessary.

What sets this perpetual calendar apart is its remarkable user-friendliness. The watch allows for quick and hassle-free adjustments without the need to navigate through an extensive 47-month cycle. Additionally, a safety function prevents accidental adjustments during the date changeover, ensuring a smooth and error-free experience.

Encased in 18k white gold, the LM Perpetual boasts a dimensions of 44 x 17.5 mm and showcases a sophisticated slate grey dial. Despite housing an intricate arrangement of 581 components, the dial maintains an uncluttered appearance, achieving a remarkable sense of depth. The 14mm balance wheel and distinct layers contribute to this visual depth.

The dial features four distinct ‘dials,’ each serving a specific function. The primary timekeeping display is positioned at 12 o’clock, with the day indicator at 3 o’clock, the month indicator at 6 o’clock, and the date display at 9 o’clock. Between the 6 and 9 o’clock positions, a leap year indicator provides additional information, completing the comprehensive set of features on this exceptional timepiece. The MB&F Legacy Machine – Perpetual Calendar is a harmonious blend of innovative functionality and aesthetic refinement, setting new standards in the world of horology.