Limited Edition of 1000 Pieces. Ball Watch Company Engineer M Pioneer Limited Edition NM9032C-S2C-BK1. 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.