Differentiate between "Real Solar Day" and "Average Solar Day".

$(20$ marks$)$

Try to made comparison of Mechanical, Tuning Fork, Analog Quartz and Digital Electronic Watches in the following terms:

Oscillating Element, Frequency divider, indication, display method and power source. $(30$ marks$)$

State the SIX main mechanisms of a basic manual winding mechanical movement.

$(12$ marks$)$

Provided a testing result of a mechanical watch is shown on the table below:

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