Marine timekeeper H3, front by John Harrison

Marine timekeeper H3, front

John Harrison

Fine art poster

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  • Amazing giclée print quality
  • 280gsm thick fine art print paper
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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.

Delivery & returns

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.

We will happily replace your order if everything isn’t 100% perfect.

Marine timekeeper H3, front by John Harrison zoom

Marine timekeeper H3, front

Marine timekeeper, H3. Started in 1740, this third timekeeper took Harrison nearly 19 years to build and adjust, although it was not to win him the great longitude prize: he found that he just could not persuade the two large, heavy, circular balances to keep time well enough. Nevertheless, H3 incorporates two extremely important inventions, both relevant today: the bimetallic strip (still in use worldwide in thermostats of all kinds) and the caged roller bearing, a device found in nearly all modern mechanical engineering. See also& ZAA0034 (H1), ZAA0035 (H2) and ZAA0037 (H4).
John Harrison

  • Image reference: D6785_1

Discover more

More by the artist John Harrison.

Explore the collection John Harrison and the Longitude.