The Citizen 45-4044 is a mechanical watch movement that features an adjustable stud holder, making it possible to fine-tune the accuracy of the timekeeping. It operates automatically, utilizing the self-winding system to power the movement. The movement also incorporates a sweep seconds hand, which provides continuous motion rather than ticking in one-second increments. Additionally, the Citizen 45-4044 includes a calendar function, displaying the date. It beats at a rate of 36,000 vibrations per hour (vph), ensuring precise timekeeping.