Watch for Stargazers by Arnold & Son - DBS Equation Sideral
Swiss watch company Arnold & Son has announced the release of a new watch model DBS Equation Sideral, devoted two historical models of the brand ¹ 1 and ¹ 2, developed by the company's founder John Roger Arnold. Used in these arrangements made between 1796 and 1799, are characterized by fabulous properties of thermal compensating Z-balance, wide escapement and the golden spring spiral. And on the main dial of both models on the two additional displays show the mean solar time and sidereal time. However, specialists have decided to improve these mechanisms and to indicate the exact sidereal time has been created entirely a new caliber, equipped by double barrels with gear and double balance with a trigger, moving at different speeds, which allow you to display the mean solar time and mean sidereal time simultaneously. One important advantage: the display uses only its own energy.
DBS Equation Sideral watch
The new model DBS Equation Sidereal has a symmetric arrangement of bridges, barrels and gear. Perfect symmetry is continued on the dial, on which two installed in the neighborhood "cocks" of the balance shape a harmonious circle. Sidereal Time is indexed on the left sub-dial, and the mean solar time - on the right. It should be noted that on the silver-white dial at 12 o'clock position is recorded the equation of time in 24-hour format with the help of which the user can calculate the difference between mean solar time and sidereal time. The watch has long central seconds hand indicating solar time. Two barrels are got by the crown mounted on the right side, and the sidereal time and mean solar time determined by the crown, located at the left and right sides, respectively.
caliber A&S1311
The new DBS Equation Sideral watch operates on an exclusive manufacturing mechanical caliber A & S1311 with manual winding, 42 jewels with a diameter of 35 mm and a thickness of 3.9 mm. The caliber has a balance frequency of 21,600 vibrations per hour and 40-hour power reserve. The functions of the mechanism is the indication of hours, minutes, seconds, sideral hours and minutes, local time on 24-hour display, sidereal time at the 24-hour time display. The mechanism is made of nickel silver, rhodium-coated, decorated with elegant circular grained finish and decorated Côtes de Genève. Bridges of the caliber are beveled and polished on the edges. Screws are blued.
John Roger Arnold, mean and sidereal pocket chronometer with Bimetallic “Z” balance, No.2, London, 1796-1799
44-mm case of 18K pink gold is water resistant to 30 meters. Domed sapphire crystal with double anti-reflective coating protects the case on the top. The backside is also made of sapphire crystal.
DBS Equation Sideral watch
The novelty is equipped with a handmade brown alligator strap.
To buy the DBS Equation Sideral watch will be available through the authorized representatives of the company Arnold & Son.
Official website of Arnold & Son watches.
Written by Lucy Vuiton
