A typical clock chip drives the clock motor with several mA, e.g. the H1344 (first google hit) specifies min. +/-4mA at a motor coil resistance of 200 Ohm. The GPIOs of the ESP8266 are stronger ...

This circuit converts a quartz clock to synchronous mains operation, so that you can have at least one clock in your home which shows the time. First, you need to obtain a quartz clock movement and ...