Rolex Explorer I
Don begins wearing a 1960’s Rolex Explorer I, possibly the reference 1016, in Season 4. There’s no mistaking the watch with its all-steel construction and 3-6-9 Arabic markers.
The Explorer is Rolex’s most classic sports model. Originally created for mountain expeditions, the contrasting black dial and luminous markers, were meant to make it more legible in low-light conditions.