Ball Watch has a new Engineer model, here’s the press info;

The originator, pacesetter, visionary. In 1891, Webb C. Ball created the official railroad standard of accuracy using stricter criteria than the modern COSC. On our 130th anniversary, our legacy of precision becomes even more exacting with our new in-house movement: Chronometer Manufacture Caliber RRM7309-S.

Powering the new Engineer M Pioneer, this watchmaking achievement takes BALL’s standards even further with an accuracy range of -2/+5 seconds per day. New technological advancements, highlighted by an ingenious silicon balance spring, withstand magnetic fields up to 2,500 Gauss and deliver superior shock resistance. Even in the dark, its precision is on full display thanks to our revolutionary micro gas lights. Once again, we are forging ahead with belief that excellence always moves forward. Limited to 1,000 pieces each, the Engineer M Pioneer is available for pre-order at a special price until 26th May 2021.

In Engineer M Pioneer, our designer has taken a bold step with the design of the dial, featuring large Arabic numerals formed by micro gas tubes at every hour. When it comes to the colors of the micro gas tubes, the Engineer M Pioneer offers 2 choices that are vastly different in styles: the standard classic version with the green and yellow gas tubes creating a harmony of light or the special version with 6 different gas tube colors mimicking the rainbow, a hidden gem that is only revealed in darkness.

All three hands are also outfitted with the micro gas tubes, with the added luminosity from the Super LumiNova coating.

SILICON BALANCE SPRING

The balance spring, the delicate part within a caliber that regulates its accuracy, is particularly susceptible to the effect of magnetism. A magnetized movement will run abnormally fast or worse, will stop running at all.

In the creation of the RRM7309-S, our watchmakers combined new material with traditional watchmaking and created something truly marvelous. As a material choice, silicon offers high anti-magnetism and corrosion resistance, it also offers enhanced stability to temperature fluctuations. Extremely lightweight and yet harder than steel, turning silicon into a delicate balance spring that is finer than a human hair requires a next-level expertise. However, as accurate oscillations – and therefore a precise movement – depend on the balance spring, silicon is an ideal material selection with these increased levels of efficiency.

We believe longevity is one of the core attributes that make mechanical timepieces more than a mere object. Thus, while we use silicon balance spring that works in combination with a new escape wheel and lever that are made in nickel-based material to deliver enhanced performance, our watchmakers have decided to retain the classic structure of the components to ensure that the fine-tuning of the remarkable precision and the serviceability in the long run is never a concern.