For Watches and Wonders 2025, Zenith is celebrating its 160th anniversary by unveiling the G.F.J., a contemporary interpretation of its iconic Caliber 135 chronometers. This release marks a revival of Zenith's rich history, predating the famous El Primero movement. The G.F.J. honors Georges Favre-Jacot, the founder of Zenith, with a modern twist on the precision-driven timepieces of yesteryear.