Arnold & Son | 29'900 € Tax inc.

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Arnold & Son unveils a new reference of its iconic Time Pyramid featuring the hand-finished A&S1615 calibre treated in NAC grey, housed in a stainless steel case.


The A&S1615 movement with unique skeletonised pyramid-shaped architecture, was conceived, designed and developed in-house. The movement A&S1615 seemingly floats between two sapphire crystals, the Time Pyramid is a masterful rendition of technical prowess and unparalleled elegance. This superbly engineered wristwatch is part of the brand's Instrument Collection that combines instrument precision with classical styling.


Inspired by the regulators created by John and Roger Arnold over two hundred years ago, and by antique British skeleton clocks, the new Arnold & Son Time Pyramid offers a highly cohesive and seductive blend of watchmaking feats that includes regulator, skeleton, vertical linear movement, pyramid-placement of components and multi-dimensional depth.


The skeletonised calibre A&S1615 follows the original regulators from the brand with its component positioning and detailed 3D visual appeal. Movement parts and watch indications are built on three levels, with the subsidiary seconds dial on the bottom, the hour indications on a sapphire crystal dial in the middle level, and a silver top ring for the minutes indication. While the movement is extremely thin - at just 4.4 mm - the multiple levels bring amazing depth and detail to the watch. To further enhance the balance and symmetry of the Time Pyramid, the crown (with Arnold & Son's engraved logo) is artfully positioned at six o'clock.


The gear train runs vertically in a linear format connecting the two barrels at six o'clock to the balance wheel at twelve o'clock, and endowing the movement with its pyramid structure. The bridges are designed so that all of the wheels, the two mainspring barrels, the escapement and balance wheel are all magnificently visible from the dial side.


Additionally, the movement is fitted with two power reserve indicators - one each on either side of the linear gear train - to display the energy level for each barrel separately. The power reserve hands indicate the reserve level via graduated dots (that are printed under the top sapphire crystal) in an arc format, and demonstrate how one barrel transfers energy to the second one when needed. Essentially, as the first barrel winds the second one, the power reserve indicator of the first barrel goes down, while the second one goes up - making for an accurate and intriguing readout. The two mainspring barrels supply the hand-wound calibre with an amazing 90 hours of power reserve, and provide a more constant force to the wheel train.


As with every esteemed Arnold & Son watch, the movement of the Time Pyramid is magnificently hand decorated with manually chamfered brides and high-polished edges, Côtes de Genève, circular satin-finished wheels and blued screws, all yielding a striking masterpiece of decorative craftsmanship and brilliant execution.


Each Time Pyramid wristwatch measures 44.6 mm in diameter in its classically elegant  stainless steel case. Viewed from the side, the housing is stepped and tapers from top to bottom, the widest section accommodating the extra-large glass with the lower part narrowing to fit snugly on the wrist. Each is finished with an exquisite hand-stitched alligator strap.


Technical specifications



(Also available in 18K rose gold : REFERENCE 1TPAR.S01A.C125A)




- Stainless steel or 18K rose gold

- Diameter 44.6 mm

- Cambered sapphire with anti-reflective coating on both sides

- Case back see-through sapphire




- Hours, Minutes & Seconds

- Double power reserve indication




- Caliber A&S1615

- Skeletonised manufacture movement

- Hand-wound

- 27 jewels

- Diameter 37.6 mm

- Thickness 4.40 mm

- Power reserve : over 90 h

- Double barrel, 21,600 vibrations/h

- Water Resistance : 30 meters 



- Skeletonised nickel-silver movement

- NAC grey treated with Haute Horlogerie finishing :

- Hand-chamfered bridges with polished edges

- Satin-finished main plate

- Côtes de Genève,

- Circular satin-finished wheels,

- Blued screws




- Sapphire

- Circular satin-finished dial frame with chamfered and polished edge




- Hand-stitched black alligator leather


Who's who



Arnold & Son belongs to a select group of watchmaking companies in Switzerland entitled to call themselves a manufacture, a French term reserved exclusively for watch manufacturers who develop and produce their own movements in-house.


The brand's prowess in the development and production of in-house movements is reflected by an impressive collection of Arnold & Son calibres with a complete range of sophisticated complications. Some measure of its achievement can be found in the fact that at least two new movements have been launched each year: an exceptional achievement that puts Arnold & Son on the same level as some of the most dynamic manufactures in the watch industry.


Every Arnold & Son movement has its own story to tell and reflects the brand's heritage. They range from the minuscule repeating watch presented to George III that cemented the founder's reputation, to the precise marine chronometers that made travel at sea so much less hazardous and put the British Empire on course to expansion.


Unlike other watch manufacturers, who often use the same calibre for different models, Arnold & Son develops a new movement for every single model. Today, the brand maintains a product philosophy established well over 200 years ago, combining traditional, hand-finished craftsmanship with state-of-the-art technology. CNC machinery delivers the microscopic precision needed to guarantee the accuracy and quality that were always one of John Arnold's prime concerns.


Arnold & Son's development and production facilities are located in La Chaux-de-Fonds, at the heart of the Swiss watchmaking industry, for the simple reason that this is the ideal place to ensure that Arnold's heritage lives on. It is home to the industry's most talented and experienced watchmakers and engineers, individuals whose pride and raison d'être lie in the production of high-quality precision watches that are among the very best available.

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