CONCIERGE PRICE: $300,756

MB&F LM3 PURPLE LIMITED
First launched in 2015 in red gold and platinum editions, the LM Perpetual is now also available in two white gold editions: a limited edition with purple face, and a non-limited edition with grey face.

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. 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 fact that the new complication looks sensational and can be fully appreciated dial-side is just one of the many bene ts offered by the new movement, controlled by a mechanical processor (patent pending).

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.

The perpetual calendar is one of the great traditional com- plications, calculating the apparently random complexity of the varying numbers of days in each month − including the 29 days in February during leap years. But traditional perpetual calendars do have a few drawbacks: dates can skip; they are relatively easy to damage if adjusted while the date is changing; and the complications are usually compromises of modules powered by base movements.

The 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, so no problems there either!

Traditional perpetual calendar mechanisms use a 31-day month as the default and basically “delete” super uous dates for the months with fewer days – by fast-forwarding through the redundant dates during changeover. A traditional perpetual calendar changing from February 28 to March 1 scrolls quickly through the 29th, 30th and 31st to arrive at the 1st. LM Perpetual turns the traditional perpetual calendar system on its head by using a “mechanical processor” instead of the conventional space-consuming grand levier (big lever) system architecture. The mechanical processor utilises a default 28-day month and adds extra days as required. This means that each month always has the exact number of days required; there is no fast-forwarding or skipping redundant days. And while the leap year can only be set on traditional perpetual calendars by scrolling through up to 47 months, LM Perpetual has a dedicated quickset pusher to adjust the year.

With its open dial revealing the full complication and sus- pended balance, it’s the harmonious mechanical beauty of LM Perpetual that really steals the show. And in an interest- ing technical twist, that eye-catching balance hovering on high is connected to the escapement on the back of the movement by what is likely to be the world’s longest balance staff.

Using an innovative system developed especially for Legacy Machine Perpetual, the subdials appear to “ float” above the movement with no visible attachments. The skeletonised subdials rest on hidden studs, which is technically impossible with traditional perpetual calendar mechanisms because they would block the movement of the grand levier. Taking a clockwise tour of the dial, at 12 o’clock we see the hours and minutes nestled between the elegant arches of the balance; day of the week at 3 o’clock, power reserve indicator at 4 o’clock, month at 6 o’clock, retrograde leap year indicator at 7 o’clock, and date at 9 o’clock.

LM Perpetual: complexity simplifed with integrity and beauty.
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Legacy Machine Perpetual is available in three limited editions of 25 pieces each in platinum 950 (blue face), 18k red gold (grey face) and 18k white gold (purple face); and in a non-limited edition in 18k white gold with grey face.

TECHNICAL SPECIFICATIONS
3 limited editions of 25 pieces each in platinum 950 (blue face), 18k red gold (grey face) and 18k white gold (purple face); and a non-limited edition in 18k white gold (grey face).
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 double mainspring barrels. Bespoke 14mm balance wheel with traditional regulating screws visible on top of the movement. Superlative hand nishing throughout respecting 19th century style; internal bevel angles highlighting hand craft; polished bevels; Geneva waves; hand-made engravings
Power reserve: 72 hours
Balance frequency: 18,000bph / 2.5Hz Number of components: 581
Number of jewels: 41
FUNCTIONS/INDICATIONS
Hours, minutes, day, date, month, retrograde leap year and power reserve indicators
CASE
Material: 18k 5N+ red gold, 18k white gold or platinum 950 Dimensions: 44 mm × 17.5 mm
Number of components: 69 components
Water resistance: 30 m / 90’ / 3 atm
SAPPHIRE CRYSTALS
Sapphire crystals on top and display back treated with anti-reflective coating on both faces
STRAP & BUCKLE
Black, grey or dark brown hand-stitched alligator strap with gold / platinum folding buckle matching case material.

Slay Billionaire offers free and insured worldwide delivery. You can expect your timepiece to be delivered in average within 2-5 working days for the UK and European Community, and 4-8 working days for the rest of the World.

Concierge Price:$300,756
Includes complimentary worldwide shipping

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