Tuesday, September 25, 2012

BALL Watch Company for BMW
















BALL Watch Company for BMW



Independent Swiss watchmaker BALL Watch Company
and German automaker BMW sign an exclusive agreement.





















 

BALL Watch Company and BMW share the same values, especially a passion for precision mechanical engineering, an undeniable spirit of innovation and constant attention to technical and aesthetic excellence. 
















































 

Through their quest for perfection, precision and expertise, the watchmaking and automobile worlds are an ideal match. As pioneer of chronometry standards, BALL Watch Company is worldwide known for having set the official standard watch of the American railroads. It was therefore an obvious step for BALL Watch Company and the legendary German automaker BMW to sign an exclusive cooperation agreement. 





































 
 

This natural union, based on the exchange of expertise and resources between the two brands to drive performance, aesthetics and precision, will in particular lead to the design of a BALL & BMW collection reflecting an assertive and decidedly contemporary spirit. A new generation of timekeeping instruments with a strong personality, created to pass the test of time while ensuring the pleasure of unsurpassable comfort: that very same pleasure that all drivers experience behind the wheel of a BMW






































 





To cement and assert the determination defining this association, the watchmaking firm will be injecting the full scope of its expertise: COSC certification for all models in the collection, technological optimization and innovations, aesthetic refinement and balanced proportions. Dedicated to the automotive world and aficionados of mechanical engineering excellence, the new BALL & BMW timepieces will incorporate various technical feats, especially a revolutionary anti-shock system. The BALL Watch Company’s exclusive patented Amortiser® system will protect the movement against extreme shocks. This exploit of micro-mechanical engineering, inspired by the automotive world, features a shock-absorbing protection ring - also anti-magnetic - enveloping the movement. Safety and performance combined: another two core values shared by BALL Watch
Company and BMW



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Click on the mouse wheel to see the large size ...  






 























 
The aesthetic design of these exceptional timepieces will pay homage to various distinctive hallmarks of BMW’s vehicles. A line based on the lightness that is typical of the German automaker’s dynamism.
BALL Watch Company and BMW have shared values that they will faithfully promote through this new association.   The new BALL & BMW collection will be made available this summer through a network of selective retailers.
























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www.Ballwatch.com

Monday, September 24, 2012

ARNOLD & SON - Instrument DBS Equation Sidereal

















ARNOLD & SON - Instrument DBS Equation Sidereal NEW



The Instrument DBS Equation Sidereal is a tribute to two watches (Nos. 1 and 2) made by John Roger Arnold that showed mean solar and sidereal time on two separate subdials. The movements of these two watches, made between 1796 and 1799, featured some of the most famous inventions of father and son, including their fabulous thermo-compensated Z balance, expansion escapement and gold helical spring. It is no exaggeration to say that they represented the state of the art in the micromechanics of their time.
Watches with a sidereal time display were extremely rare at this time. After the Arnolds had paved the way, Breguet followed in their footsteps and produced a few watches with a sidereal time display and a similar dial layout (such as No. 3863, sold in 1824).
 
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Creating a precise sidereal time display is a tall order. Simply adding a second gear train to a standard movement showing mean solar time is not a viable solution because a mean sidereal day is about 23 hours, 56 minutes, 4.091 seconds, which is not a round fraction of the 24 hours in a mean solar day. This means it is virtually impossible to obtain the correct rotation speed using gears. To guarantee the kind of precision demanded by Arnold & Son, the only choice was to create a movement with the correct rotation speed from the start: in other words a movement specifically for sidereal time. The answer was a totally new movement with a double barrel/gear train and double balance/escapement running at different speeds that enables the watch to display mean solar time and mean sidereal time simultaneously. This technical solution has the additional advantage that neither of the two indications saps energy from the other. Watches with a double balance and escapement are extremely rare and have almost disappeared, so it is with some pride that Arnold & Son have revived the tradition.

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The DBS Equation Sidereal has a perfectly symmetrical arrangement of the bridges, barrels and gear trains. The symmetry is continued on the dial side, where the two adjacent balance cocks create a harmonious circle. Sidereal time is displayed on the left subdial and mean solar time on the right. In addition, a subdial at 12 o'clock indicates the equation of both times on a 24-hour basis, which allows the user to measure the difference between mean solar time and sidereal time and to ascertain whether the time in both zones is a.m. or p.m. The watch has a long central permanent seconds hand (for mean solar time). The two barrels are wound using the crown on the right, but sidereal time and mean solar time are set separately using the crowns on the left and right, respectively. This ensures that neither of the displays is changed or manipulated by accident.

Sidereal time
Sidereal time is the timekeeping system used by astronomers to track the direction needed to point a telescope at a particular star in the night sky. A mean sidereal day is measured by the rotation of the earth relative to the stars rather than the sun and lasts 23 hours, 56 minutes, 4.091 seconds. It is approximately four minutes shorter than a mean solar day because, owing to the movement of the earth round the sun, the time that elapses before a distant star appears at the same point is slightly less than the time it takes for the sun to be directly over the same point.

 ARNOLD & SON - Caliber 1311

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Click on the mouse wheel to see the large size ...     BIG FOTO




















Click on the mouse wheel to see the large size ...     BIG FOTO




















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Technical Specifications

References: 1DSAP.W01A.C120P 18-carat rose gold case

Calibre A&S1311
 Details
Exclusive Arnold & Son mechanical movement, hand-wound, 42 jewels, diameter 35 mm, thickness 3.9 mm, power reserve 40 h, 21'600 vibrations /h 
Movement decoration: Nickel-silver movement, rhodium treated with Haute Horlogerie finishing: manually chamfered bridges and polished edges, fine circular graining and 'Côtes de Genève', blued screws


Functions
Local hours, minutes, and seconds, sidereal hours and minutes, local time 24 h indicator, sidereal time 24h indicator

Movement decoration
Nickel-silver movement, rhodium treated with Haute Horlogerie finishing: manually chamfered bridges and polished edges, fine circular graining and Côtes de Genève, blued screws

Dial colour
Silvery-white and silvery opaline

Case
18-carat rose gold, diameter 44 mm, cambered sapphire with anti-reflective coating on both sides, case back see-through sapphire, water-resistant to 30 m

Strap
Hand-stitched brown alligator leather


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 www.worldtempus.com
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www.Arnold & Son.com