The first Hamilton chronograph movement with a silicon hairspring

Hamilton is synonymous with aviation and we are celebrating our 100 years of timing the skies with a limited edition watch that represents the very best of Hamilton.

Limited to just 1,918 individually numbered pieces, the Khaki X-Wind Auto Chrono Limited Edition features a robust 45 mm stainless steel case, which houses the H-21-Si, the first Hamilton chronograph movement with a silicon hairspring. This material makes the movement more precise as silicon is non-magnetic and less sensitive to shocks.

Thanks to newly shaped hands and Super-LumiNova® numerals in sand color that glow neon green in the dark, the watch has enhanced readability. The multilevel black dial allows the eye to navigate between the three counters, the day date window at 9 o’clock and the turning inner bezels. The X-shape visible between the pushers and crowns surrounding the case complete this multi-dimensional theme.

Accuracy, innovation, a taste for adventure and a focus on precision have all contributed to making Hamilton the choice of professional aviators to accompany them in the cockpit. Hamilton is proud to celebrate our first century of timing the skies with a precision watch that represents our aviation heritage past, present and future.