Hangzhou Watch Company HZ7500

The HZ7500 is an automatic movement manufactured by Hangzhou Watch Company. It measures 30mm in diameter and 5.23mm thick, operates at 28,800 bph (4 Hz), contains 21 jewels, and provides approximately 80 hours of power reserve. The movement features bidirectional winding using a Magic Lever-style pawl system, hand-winding capability, hacking seconds, and Novodiac anti-shock protection. A skeletonized version is available. The HZ7500 remains in production and is used by Tophill, Waldhoff, Boderry, and GeYa.