Three-quarter view of Harrison's marine timekeeper H1 by John Harrison

Three-quarter view of Harrison's marine timekeeper H1

John Harrison

Fine art poster

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  • Amazing giclée print quality
  • 280gsm thick fine art print paper
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    • x cm excluding border ( x in)
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We use a 280gsm fine art paper and premium branded inks to create the perfect reproduction.

Our expertise and use of high-quality materials means that our print colours are independently verified to last between 100 and 200 years.

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Manufactured in the UK

All products are printed in the UK, using the latest digital presses and a giclée printmaking process.

We only use premium branded inks, and colours are independently verified to last between 100 and 200 years.

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We print everything to order so delivery times may vary but all unframed prints are despatched within 2-4 days via courier or recorded mail.

Delivery to the UK is £5 for an unframed print of any size.

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Three-quarter view of Harrison's marine timekeeper H1 by John Harrison zoom

Three-quarter view of Harrison's marine timekeeper H1

This is the first experimental marine timekeeper made by John Harrison in Barrow-on-Humber between 1730 and 1735 as a first step towards solving the longitude problem and winning the great Õú20,000 prize offered by the British Government. Now known as 'H1', the timekeeper is unaffected by the motion of a ship owing to its two interconnected swinging balances. It compensates for changes in temperature and thanks to extensive anti-friction devices, runs without any lubrication. It was the first relatively successful marine timekeeper of any kind and was the toast of London when Harrison unveiled it in 1735. It is one of the great milestones in clock-making history.
John Harrison

  • Image reference: F7005

Discover more

More by the artist John Harrison.

Explore the collection John Harrison and the Longitude.