We probably shouldn't be calling this a
Subway Clock, as it was likely in place long before Subway moved into the premises. It is directly over the entrance to the sub shop and is large enough to be quite useful, especially for those people who find reaching into their pocket for the cell phone to be simply too burdensome a task. This is, incidentally, the only clock we've yet noticed in the downtown area.
With an octagonal face and Roman Numeral numbers, it has somewhat of a classic look. It seems to keep pretty good time, probably better time than the clock in the camera which took the picture (which indicates a time of 15:15 for this picture).