Weems and Plath Endurance 125 Clock - Manual (Page 10)

7) The initial synchronization of your radio controlled clock movement is
complete. The second hand will continue to double step until the
movement receives a signal from the Atomic Clock in Colorado and
adjusts the clock to the precise correct time of day. We recommend
that you allow 24-48 hours for your clock to receive the signal.
8) When changing batteries, repeat steps 1-7. If at any time, you make a
mistake setting the clock, remove the battery and briefly insert it
backwards for one second. Then remove the batter, insert it correctly
and repeat the setting steps again.
9) Daylight Savings Time Bypass: If you live in an area that does not
observe Daylight Savings Time, you can prevent automatic DST
adjustment of the movement by pressing and holding the red button
while inserting the battery. After the battery is fully inserted, release
the red button and following steps 1-7.
10) If clock stops, it is most likely due to a dead battery. Remove the
battery immediately as it might leak acid causing damage to the
movement.*
11) If clock is to be left unattended for long periods of time, the battery
should be removed. Otherwise it could become dead and leak acid
causing damage to the movement.*
Location Tips & Time Signal Information:
The movement is equipped with a specialized AM radio receiver that is
tuned to receive the coordinated universal time signal broadcast by
WWVB (60KHz) in Fort Collins, Colorado. The WWVB signal is an AM