Hangzhou Watch Company 7500

The Hangzhou 7500 is an automatic movement manufactured by Hangzhou Watch Company. It measures 30mm in diameter, operates at 28,800 vph, and delivers an 80-hour power reserve achieved through an extra-long mainspring housed in a single barrel. The movement features magic lever winding and Novodiac shock protection, with a skeletonized design placing the balance wheel at 6:00 and the mainspring at 12:00. It remains in production and is used by brands including Boderry and Waldhoff Timepieces.