Hamilton H-12

The Hamilton H-12 is an automatic movement manufactured in Switzerland and based on the ETA 2825-2. It operates at 28,800 vph with 25 jewels, a 38-hour power reserve, and uses a ball-bearing rotor with Novodiac shock protection. As a regulator-type movement, it separates the minutes and hours into distinct displays for improved readability. The H-12 powers the Jazzmaster Regulator Auto collection.