Page "Rockwell Automation Headquarters and Allen-Bradley Clock Tower" Paragraph 3

The current clock tower stands at 283 ft. ( 86. 26 m ).

Because the octagonal faces are nearly twice the size of the faces of London ’ s Big Ben, chimes were never added in order to allow Big Ben to remain the largest four-faced chiming clock in the world.

Both towers held their respective titles of largest clocks in the world until the completion of the Abraj Al Bait clock tower in Mecca, Saudi Arabia.

Each hour hand of the Allen-Bradley Clock Tower is long and weighs 490 pounds ( 220 kg ).

Each minute hand is 20 feet ( 6. 1 m ) long and weighs 530 pounds ( 240 kg ).

The hour markings are high.