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Arnold & Son - Time Pyramid Tourbillon

Arnold & Son Time Pyramid Tourbillon

The Time Pyramid is back with a skeletonized flying tourbillon floating between two sapphire crystals.

The Time Pyramid Tourbillon comes in a 44.6 mm diameter 18-karat red gold or stainless steel case - each limited to 28 pieces - and is adorned with a brown or black hand-stitched alligator strap, with 18-karat red gold or stainless steel pin buckle. 

The timepiece is inspired by the regulators created by John and Roger Arnold over two hundred years ago and by antique British skeleton clocks with their recognizable vertical construction and cone-shaped chain and fusee system.

The skeletonised calibre A&S8615 is built on three levels. The tourbillon and the two power reserve indicators are superposed by a sapphire crystal dial indicating the hours itself, crowned with a rhodium plated ring for the minutes. This exclusive construction offers a lively-look and three-dimensional face to the timepiece and, to further enhance the balance and symmetry, the crown is positioned at six o’clock.

Time Pyramid Tourbillon

Time Pyramid Tourbillon, red gold © Arnold & Son

The gear train runs vertically in a linear arrangement connecting the two barrels at six o’clock to the tourbillon escapement at twelve o’clock, giving the movement its pyramidal architecture. The bridges are designed so that all the wheels, the two mainspring barrels, the escapement and balance wheel are all visible from the dial side.

Besides the off-centred hours and minutes, seconds are on the tourbillon and the two power reserve indicators, with blued steel hands, are on each side of the linear gear train. The two serially set up barrels supply the in-house manufactured calibre with a total of 90-hour power reserve and provide a more regular force to the wheel train.

Time Pyramid Tourbillon

Time Pyramid Tourbillon, stainless steel © Arnold & Son

To meet with Arnold & Son finishing standards, the movement of the Time Pyramid Tourbillon is decorated with chamfered bridges, polished edges and Côtes de Genève while the main plate is satin-finished, the A&S three-spoke wheels chamfered, the edges polished, and the screws blued. The top bridge and cage plate of the tourbillon are circular satin-finished, chamfered and mirror-polished by hand.

Prices:  red gold: CHF 46,800 / stainless steel: CHF 37,150


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Named after John Arnold, the English watchmaker of the 18th century renowned for his ingenuity and work on marine chronometers, Arnold & Son perpetuates today his legacy, exploring contemporary ways to interpret traditional watch craftsmanship.

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