When High Torque Movement Clock Hands are Important
High torque movement clock hands are, basically, those that are as well hefty and/or too long for an average electric motor to rotate effectively. Typically, (minute) clock hands needing a high torque movement are longer than 5 inches. The measurement is traditionally made from the facility of the placing opening to the suggestion.
But high torque clock movement min hands are readily available from providers as long as 18 inches. This suggests that the size of the matching dial mores than 3 feet throughout. Since's a huge wall clock!
There are, obviously, many, several clocks less than 1 foot in diameter. Certainly, there are so many that most minute hands are well under 6 inches in size. Therefore, the 5-inch limit for min hands that can be turned utilizing regular movements is not a significant detriment for most clockmakers.