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Following on from the success of the Vertical Double Tourbillon in 2015, Speake-Marin now launches the Black Magister Vertical Double Tourbillon. A unique piece, it features two 60-second tourbillons on an “all black” gilded mainplate to enhance the contrast and beauty of the mechanism.
The first timepiece ever to bear the Speake-Marin name was the Foundation Watch, a hand-made pocket watch that Peter Speake-Marin equipped with a tourbillon. Peter Speake-Marin recognizes the tourbillon’s capacity to improve timekeeping accuracy by averaging out positional errors due to gravity. However, it is the visual aspect of the escapement that always draws him to it.
The dial features an oven-fired enamel sub dial with the hours and minutes displayed by Speake-Marin’s signature Foundation hands in heat blued steel. Just above the sub dial is a 72-hour power reserve indicator displaying available power by means of a cam-shaped disc that opens when fully wound to reveal the gears and mechanisms below, and gradually closes and signals empty when a red section of the disc reaches the central marker.
Under the sub dial can be found a day/night indicator visually balancing the power reserve indicator above. The twin tourbillons are vertically aligned on the left which quickly attracts the viewer’s gaze.
A single hand finished bridge with mirror polished internal bevels, supports the upper side of both tourbillons. Each tourbillon has its own independent gear train powered by its own mainspring barrel. The two barrels are wound simultaneously via the crown. A miniature limited-slip spring gearbox – the spring absorbs and balances any subtle variations between the two cages – called an équilibreur de marche (rate equalizer) links the two tourbillon regulators.
The 46 mm watch comes in an 18K white gold Piccadilly case, allowing both space for a large and legible time display as well as room for the tourbillons to be fully appreciated without being crammed closely together.
For this unique piece, the mainplate was treated “all black” to reveal by way of a strong contrast of colors, the beauty of the mechanism and of the decoration.
The inspiration for the movement bridge design and decoration comes partly from one of the first tourbillons in the Speake-Marin collection: The Vintage Tourbillon Mk II. Like the Vintage Tourbillon, the Magister Vertical Double Tourbillon’s movement features German silver bridges, perlage and ruthenium plating. Geneva stripes covering the 3/4 plate movement differ from the usual in that the waves run not in one direction but two, away from the center of the plate.
On the reverse the display back is also black gilded with contrasting engraving. The underside of the two tourbillons is open to view and a small wheel between the openings of the tourbillon cages marked “Equilibreur de Marche” takes the rate of the two independent regulators and transmits the average of their two rates to the time display.
The équilibreur de marche linking the two 60-second tourbillons consists of two concentric wheels arranged one on top of the other. A small spring sandwiched between the wheels has each end attached to a wheel. Each wheel rotates with its respective tourbillon cage and the spring between is tensioned when the rates of the two regulators differ, or if subjected to asymmetric shocks. The watch comes on an alligator strap with an 18k white gold pin buckle.
Specifications
MOVEMENT: SM Caliber SM6, manual wound vertical double tourbillon movement. All black gilded treatment mainplate
INDICATIONS: Off-set hours, minutes with power reserve and day/night indicators
POWER RESERVE: ~ 70 hours
CASE: Piccadilly case in 18K white gold front and back sapphire crystals treated with anti-reflective coating
DIAMETER: 46 mm
WATER RESISTANCE: 3 bar (30 meters)
DIAL: White enamel dial
HANDS: Speake-Marin signature “Foundation” style hands in heat blued steel
STRAP: Alligator. Pin buckle in 18K white gold
19.04.2016, 20:25
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