Gunpowder and clockworks are quite mundane.
The clockworks (for rotating the lenses) were also located there.
There are two kinds of movements: one-day (30-hour) and eight-day clockworks.
The medieval clock is the only one of its kind still in working condition with its original clockworks.
The striking mechanism was governed by a weight attached to a flywheel, and later internally run by clockworks.
The original plans called for the clockworks to be connected to five bells that would chime every hour, but the carillon was never built.
Electricity was introduced to the lighthouse in 1939, eliminating the need to rewind the light rotation clockworks every 4 hours.
By 1805 the clockworks, and standard cases, could be produced in quantity, reducing the cost of the clock.
