Clock Repair Archive – –
The pendulum length is 6.5 inches from regulator tab to the bottom of the pendulum bob plus 3/8 inch travel on the regulator ( the total effective length when the clock is keeping time is 6.5 inches ) ; the minute hand can be turned backwards ; to make the clock run faster turn the regulator to the left to make it run slower turn the regulator to right 1 turn of the regulator = approximately 5 .5 minutes in 24 hours ; the regulator shaft takes a number 3 size key the spring arbors take a number 6 key which fits quite snugly.