The Longines 8.28 watch movement incorporates an Adjustable Stud Holder, providing the ability to fine-tune the timing of the watch. The movement also features Shock Protection, ensuring durability and reliability in various conditions. It includes a Sweep Seconds function, accurately displaying the passing seconds. With a beat rate of 18000 vph, the movement maintains precise timekeeping. The HF4B8 movement is further enhanced by 17 Jewels, minimizing friction and improving longevity.