They could simply lower the weight onto the platform, allow the clock to catch up to the correct time and then wind the weight back up, allowing the clock to resume its normal timekeeping. This was very useful if a clock was running slightly late but the owner did not want to completely reset it. Because the time taken for the pendulum to complete one swing is proportional to the square root of the length, decreasing the length will slightly decrease the time taken and the clock will speed up. Adding a small amount of weight to the middle of the pendulum moves its centre of gravity upwards, which has the effect of shortening its length. Turning the crank lowers a weight onto a circular platform on the pendulum.

On the left side of the case is a small crank that can be turned once either way. Note that neither dial has any mechanical connection to the pendulum. The seconds dial is controlled by a separate seconds counter so that its hand ticks with every swing of the pendulum. This means that the minute and hour hands only move every 30 seconds. The current that flows, energises an electromagnet that resets the lever, breaking the circuit again, sending a pulse to the upper dial through a series circuit. A moment later, the L-shaped lever also closes a circuit. The lever carries a roller which impulses an arm attached to the pendulum restoring the energy lost in the previous half minute. Every 30 seconds the countwheel trips a detent and an L-shaped lever falls. Inside the case is a pendulum with a period of two seconds and a countwheel which advances one tooth with each swing of the pendulum. It has two dials, the lower dial has the seconds hand and the upper dial has the hours and minutes hands.

This clock has a grey wooden case with a glass door. They also built the clocks in the towers of South Brisbane Town Hall (1904) and Brisbane City Hall (1930), among many others. The Synchronome Electrical Company of Australasia built clocks in Brisbane under licence from Frank Hope-Jones' Synchronome Company in England.

Synchronome Master Clock Serial Numbers