The Pachuca's Monumental Clock has the same identical machinery as what Great Bell of the clock located at the north end of the Palace of Westminster in London?
Monumental Clock of Pachuca:  Its machinery is identical to that of Big Ben in London. Big Ben: Big Ben is the nickname for the Great Bell of the clock at the north end of the Palace of Westminster in London and is usually extended to refer to both the clock and the clock tower as well.
i don't know