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Arnold & Son - Instrument DSTB Steel Black Dial

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As a Baselworld 2015 preview, Arnold & Son unveiled a new limited edition of the Instrument DSTB (Dial Side True Beat), a timepiece featuring a true beat seconds complication that was introduced last year.



The new version of the Instrument DSTB combines a 43.5 mm stainless steel case to a three-dimensional dial built over a black ADLC treated plate.

With true beat seconds, also known as dead seconds, the second hand advances in full steps of one second instead of the more usually smooth sweeping action of mechanical seconds. The in-house developed automatic movement showcases the entire true beat seconds' mechanism - hands, lever, wheels and three palladium treated bridges - on the dial side.



The true beat seconds lever is easily recognisable for its anchor-like shape, a link to Arnold’s maritime achievements. Seconds are indicated via a large sapphire dial that occupies the top left portion of the dial at 11 o’clock. At the 4 o’clock position, a silvery opaline subdial indicates the hours and the minutes via blued hands.


The self-winding calibre A&S6003 is comprised of 229 components and beats at 28,800 vph with a power reserve of  50 hours. The typical NAC grey treatment, the hand-chamfered and satin-finished lever and bridges, the polished edges and fine circular graining, the Côtes de Genève rayonnantes as well as the skeletonized oscillating weight can be admired through the sapphire crystal back case.


The Instrument DSTB in steel with black dial (ref. 1ATAS.S02A.C121S) will be limited to 250 timepieces with a retail price of Swiss Francs 27,900.

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