View into the open World Clock:
The MOTOR was diagnosed as defect ...

... Left the ESCAPEMENT - right the TIMER;

View at the TIMER-CONTACTS ...

The disassembled motor
(after cleaning the soot-blackened parts)
shows the burned away lower contact pair ...

... The REPLACEMENT is made of bronze and soldered in ...

... Now assembled, the WORLD CLOCK is working again - WOW! ...