The movement splits into two parts. The movement coming away from the case, and this rear section staying behind. This is bolted to a subframe which in turn bolts to the back of the case.
The flywheel links to the movement via the small conical spring seen in the centre. This provides a driving force whilst the clock is being rewound. Rewinding takes place by a two pole electro magnet just visible on the top of the movement. Situated between the two cream coloured coils of the magnets you can just see the pendulum suspension spring.
The contacts seen on the right hand side are driven by a shaft from the clock and provide the pulses to the slave clocks.