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From sundials to microwaves and smartphones to cars, we've been measuring time for centuries.

But did you know that many Essex supermarkets have a clock tower?

The design trend goes back to the 1970s and began with a store in South Woodham Ferrers.

Essex film maker Chris Spargo has been investigating...

Picture credit: Mark Hardie/ÃÛÑ¿´«Ã½.