Arnold & Son Tourbillon Chronometer No.36 Tribute Edition


Two hundred and forty years ago, English watchmaker John Arnold created the Chronometer No. 1/36 - the first time-measuring device to be called a “chronometer” for its  remarkable precision. Generally known as Arnold 36, this was John Arnold’s first pocket watch to feature a larger movement with his (at the time) ingenious “T” compensation balance. The Royal Observatory in Greenwich, London tested the watch for 13 months, from 1 February 1779 to 6 July 1780. A technical revolution at the time, it surpassed all expectations, as it displayed exceptional accuracy. The greatest error in any 24 hours was only four seconds. Housed in a 60mm gold case, the Chronometer No. 1/36 has survived in original condition. Today it can be seen in the National Maritime Museum in Greenwich, London.

Arnold & Son Tourbillon Chronometer No.36 Tribute Edition 2

The historic Chronometer No. 1/36 has survived in original condition and can today be seen in the National Maritime Museum in Greenwich

 

To mark the 240th anniversary of this historic pocket watch, Arnold & Son is proud to announce a special tribute piece – the Tourbillon Chronometer No.36 Tribute Edition. The timepiece is available in two versions: one in red gold (ref. 1ETAR.S01A) and the other one in stainless steel (ref. 1ETAS.B01A). Priced at CHF 49,210 and CHF 33,200 respectively, they are both issued as non-limited editions.

Arnold & Son Tourbillon Chronometer No.36 Tribute Edition 1

Each model comes as a non-limited edition

 

The new Arnold & Son Tourbillon Chronometer No.36 Tribute Edition features an openwork dial that allows the wearer to admire the inner workings of the movement. The main components, such as the barrels, wheels and tourbillon, are each mounted on their respective bridge. The multilevel, triangular bridges are skeletonized and provide a more modern feel of three-dimensional depth to the entire watch. One of the most eye-catching parts of the movement is the one-minute tourbillon. Positioned between 4 and 5 o’clock, it is supported by a skeletonized and mirror-polished top bridge and features a typically Arnold & Son three-spoke design. The entire cage is composed of 58 components and weighs less than a gram. Visually contrasting the tourbillon is the small seconds counter between 7 and 8 o’clock.

Arnold & Son Tourbillon Chronometer No.36 Tribute Edition 5

The skeletonized bridges provide a three-dimensional depth to the entire watch

 

The entire movement is decorated in a true haute horlogerie manner. The red gold model features Palladium treated bridges and NAC grey main plate while the stainless steel version has a black DLC main plate and NAC grey bridges. Both watches have mirror-polished white gold chatons and screws with beveled and mirror-polished heads. The two barrels feature laser-engraved decoration.

Arnold & Son Tourbillon Chronometer No.36 Tribute Edition 3

The entire movement is decorated in a true haute horlogerie manner

 

Housed in a 46mm case, the latest Arnold & Son watch is water resistant to 30 meters and has a transparent sapphire case back. The red gold model features matching hands and indexes while the stainless steel version features silver hands and hour markers. Both watches are powered by the in-house developed calibre A&S8600 with 33 jewels. This hand-wound movement is a COSC certified chronometer – a rare feat for a tourbillon-equipped calibre. The movement itself beats at a frequency of 28,800 vibrations per hour and offers a substantial power reserve of 90 hours. The latter is possible thanks to the two barrels. Completing the Arnold & Son Tourbillon Chronometer No.36 Tribute Edition is a stylish alligator leather strap: a brown one for the red gold model and black for the stainless steel version.

 

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