Kalle Slaap from Chronoglide in the Netherlands explores the technical evolution of watch layouts, detailing how movements became significantly thinner and more portable over time. He highlights the impact of Jean-Antoine Lépine’s bridge designs and the shift from vertical to horizontal escapements, which were essential steps toward the creation of the wristwatch. The video also distinguishes between standard portable watches and precision marine chronometers while showcasing early complications, such as a 1720s movement with a day-date disk.
