Smiths Empire Desk Clock
The escape wheel and balance wheel are just visible in this photo
I bought this clock at a car-boot sale a few weeks ago for about 3 pounds. It wasn't working but it was easily fixed. The balance wheel had come loose and it just needed to be tightened a little.
The clock model is called 'Conway' and was manufactured by Smiths in the UK from 1957 to 1958. It uses a 30 hour mechanical movement.