MB&F Legacy Machine Perpetual

MPN: 03.SL.S

With Legacy Machine Perpetual, MB&F and independent watchmaker Stephen McDonnell have reinvented one of the most complex traditional watchmaking complications: the perpetual calendar.

The result is Legacy Machine Perpetual, featuring a visually stunning in-house movement, developed from the ground up to eliminate the drawbacks of conventional perpetual calendars. The 581-component, fully integrated and purpose-built movement of Legacy Machine Perpetual has been designed for user-friendly and trouble-free use: thanks to an innovative “mechanical processor”, no more skipping dates or jamming gears, and the adjuster pushers automatically deactivate when the calendar changes, so no problems there either.

CASE

Material: 18K red gold, 18K white gold, 18K yellow gold, platinum 950, grade 5 titanium, palladium 950 or stainless steel.

Dimensions: 44 x 17.5 mm

ENGINE

Fully integrated perpetual calendar developed for MB&F by Stephen McDonnell, featuring dial-side complication and mechanical processor system architecture with inbuilt safety mechanism.

Manual winding with two mainspring barrels.

Bespoke 14mm flying balance wheel visible on top of the movement.

Superlative hand finishing throughout respecting 19th century style.

Power reserve: 72 hours

581 components / 41 jewels

FUNCTIONS / INDICATIONS

Hours, minutes, day, retrograde date, month, retrograde leap year and power reserve indicator