Discover the Longines Master Collection Chrono Monopusher, where elegance, innovation and mechanical precision meet Longines’ watchmaking heritage and timeless design. The monopusher chronograph allows the timing functions to be started, stopped and reset using a single push-piece integrated into the crown, complemented by a traditional pulsometer scale. The collection also draws on Longines’ long history of monopusher chronographs, dating back to 1911.