Should you know the answer please don't post it. I will post the answer on Sunday.

In 1666 Dr. Robert Hooke designed the anchor or recoil escapement. In 1671 William Clement used this design in a tall clock. After about 1675 they became commonplace.
Question: What is the greatest benefit provided by this design?
The answer will be posted on Sunday evening with a new question to follow on Monday.

Joe

Does it have to do with the type of pendulum used (or is that a major part of it)?

Andy

Hi Andy,
You are on the right track again.

Joe

The answer as promised.
From the book 'In quest of Clocks' by Kenneth Ullyett.
"The angle of swing (arc) of the pendulum is reduced compared with crown-wheel escapement, so Hook's discovery opened the way for longer, more accurate pendulums and escape mechanism, and also enabled the swinging pendulum, moving in a small arc, to be enclosed in a narrow trunk case. Thus for the first time long cased clocks with one-second pendulums (39.13 inches) and even longer became possible."