An innovative film of Kent's spectacular coastline has won a top award.

Horizon (Five Pounds a Belgian) is a study of the sea filmed over several months by artist John Smith from the windows of Margate's Turner Contemporary and other locations around the town.

The work, commissioned by the Turner Contemporary, and screened at the gallery last year, has been named the winner of this year's Film London Jarman Award.

Artist Derek Jarman, who lived in Dungeness before his death in 1994, was one of the most esteemed and controversial artists of the late 20th century. Now in its sixth year, the award is given in his name to acknowledge contemporary UK artist film-makers who defy convention.

The winner receives £10,000 and a commission from Channel 4.

London-based artist Smith impressed judges with the disciplinary variety and experimental approach of his film.

He captures the seascape across seasons and in dramatically different weather conditions, using a variety of techniques to stress and contrast the abstract qualities of light, colour and movement.

Victoria Pomery, director of Turner Contemporary, said: “The film he created for us is very particular to Margate. It makes us consider the incredible seascape that drew JMW Turner to the town and continues to be a powerful inspiration for artists today.”

Video: John Smith talks about his award-winning film Horizon