The Alpina 19 watch movement features a pin-lever escapement and is typically identified by the calibre designations 420 or 420/425. The reliability of the correlations between these designations and specific features is questionable due to incomplete sources. However, these designations do not significantly impact the functionality of the movement. The Alpina 19 movement is manually wound and includes a digital display for minutes and jumping hours. It was primarily used during the approximate time period of 1975.