The Graham Fortress is a chronograph equipped with a mono-pusher set within the crown. By placing the mono-pusher/crown on the left flank of the case, the watch exhibits a clean, uncluttered profile.

Meanwhile, locating the lone pusher on the right side of the case makes operating the chronograph highly intuitive. Its design and location facilitate quick operation of the chronograph functions, ensuring recorded times faithfully represent the duration of an event.

The dial features a small seconds display and a 30-minute chronograph register. A date aperture at 9 o'clock completes the inventory of functions.