A TON of ad-copy that says very little.
BTW isn't it ligne and NOT line?
The sleek Farnsworth Chrono is available in a black dial (63B018) and black leather band. This Swiss-made timepiece by Bulova for men offers an all stainless steel case and black leather bracelet. The Black Clou de Paris patterned chronograph dial is powered by a Swiss Valgranges calibre ETA A07.211 automatic movement. The handsome watch includes a date window at the 3 o'clock position as well as a scratch-resistant sapphire crystal. Completing the watch is a water-resistance level of up to 50 meters.
A new calibre has emerged: the Valgranges, an impressive 16½ line movement. From Valjoux to Valgranges - A select origin entails a special obligation for excellence. The Valgranges calibre is indeed of high-ranking birth. Its name shows at a glance that it was conceived along the lines of the famous Valjoux calibre. Designed in 1973 in the Vallée du Joux, this standard diameter (131/4 lines) automatic mechanical movement has become a reference movement in Swiss mechanical watchmaking. It is the timekeeper chosen by an extensive number of brands and its name is recognised as a pledge of quality by both professionals and connoisseurs. Developed in Granges (Grenchen in German), where the manufacture ETA was founded nearly a century and a half ago, the Valgranges has all the qualities of the 7750 movement. And maybe even something more …
Watchmakers are familiar with the exceptional quality of ETA movements. Moreover, Valgranges has the exceptional power to manufacture quality precision products. The Valjoux is prized for its reliability, its robustness, its high precision and also for its power: The mainspring rewinds with extraordinary speed – it just takes a few movements of the wrist to furnish the watch with energy. For the spring to reach its full 46 hours’ power reserve, a few hours of wrist movement will suffice. Of course, all the other advantages of the Valjoux are also included in the Valgranges calibre.
Like the Valjoux, the Valgranges calibre is available in a series of movements equipped with different features but all of identical dimensions (same diameter, same height), an uncommon advantage for clients. These beauties by Bulova feature a Valgranges ETA A07.211 Movement for Hour, minute, second, date and chronograph.
Following a centuries-old tradition, watchmakers use lines rather than millimetres to describe the size of the movement’s diameter. This measurement is generally indicated as a triple apostrophe, so 16½ lines is written as 16½´´´, or 37.22 mm diameter. The line, or Parisian line, is an ancient watchmaking measurement that predates metrification and is a direct descendant of the French pied (foot) measurement used under the Ancien Régime. Each line is equivalent to 2.2558 mm, which is rounded up to 2.26 mm for ease of calculation.