Arnold & Son - Arnold & Son, Constant Force Tourbillon
Arnold & Son - Arnold & Son, Constant Force Tourbillon

Arnold & Son, Constant Force Tourbillon

Arnold & Son | 190'800 € Tax inc.

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Arnold & Son, Constant Force Tourbillon

Arnold & Son pushes precision chronometry ever further with the Constant Force Tourbillon, featuring a patented constant force device with 60-second tourbillon and true beat seconds.


The symmetrical movement architecture of the Constant Force Tourbillon movement pays tribute to Arnold & Sons' historic marine chronometers. At the top, two visible mainspring barrels and the constant force device provide optimal power to the tourbillon at the bottom of the dial.

Technical specifications




- 18 carat red gold case

- Diameter 46 mm

- Cambered sapphire with anti-reflective coating on both sides

- See-through sapphire case back



- Hours & Minutes

- True Beat Seconds

- Tourbillon, Constant Force



- Caliber A&S5119

- Exclusive Arnold & Son Mechanical movement, hand-wound,

- 39 jewels

- Diameter 36.8 mm

- Thickness 6 mm

- Power reserve : 90h

- Double barrel

- 21,600 vibrations/h.



- Nickel-silver and steel movement

- Palladium treated bridges and NAC grey treated main plate with Haute Horlogerie finishing : 

- Hand-chamfered bridges with polished edges and brushed surfaces,                       

- Screwed gold chatons,

- Screws with bevelled and mirror-polished head. 

- Tourbillon cage: mirror-polished with hand-chamfered polished edges and circular satin-finished surfaces.



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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