These terms of use tells you the terms of use on which you may make use of our website Use of our site includes accessing, browsing or downloading files from our site. Please read these terms of use carefully before you start to use our site, as these will apply to your use of our site. By using our site, you confirm that you accept these terms of use and that you agree to comply with them. If you do not agree to these terms of use, you must not use our site.

Other applicable terms

These terms of use refer to the following additional terms, which also apply to your use of our site: Our Privacy Policy, that can be accessed here which sets out the terms on which we process any personal data we collect from you, or that you provide to us. By using our site, you consent to such processing and you warrant that all data provided by you is accurate.

When you visit our website, we use cookies, which are small pieces of information that allow us to maintain your connection to our website. This website may use cookies for detecting what kind of device you have in order to present content in the best way, or for Google Analytics. These cookies do not collect or store any personally identifiable information. If you’d like to know more about cookies and how to refuse the use of cookies, visit is operated by Thomas Mercer (Chronometers) Limited. We are registered in England and Wales under company number 02905235 and have our registered office at 25 Farringdon Street, London, EC4A 4AB.

Changes to these terms

We may revise these terms of use at any time. Please check this page from time to time to take notice of any changes we may have made, as they are binding on you.

Changes to our site

We may update our site from time to time and may change the content at any time. However, please note that any of the content on our site may be out of date at any given time and we are under no obligation to update it. We do not guarantee that our site, or any content on it, will be free from errors or omissions.

Accessing our site

Our site is made available free of charge. We do not guarantee that our site, or any content on it, will always be available or be uninterrupted. Access to our site is permitted on a temporary basis. We may suspend, withdraw, discontinue or change all or any part of our site without notice. We will not be liable to you if for any reason our site is unavailable at any time or for any period.

You are responsible for making all arrangements necessary for you to have access to our site.

You are also responsible for ensuring that all persons who access our site through your internet connection are aware of these terms of use and other applicable terms and conditions and that they comply with them.

Intellectual property rights

We are the owner or the licensee of all intellectual property rights in our site, and in the material published on it, with the exception of the images listed below. Those works are protected by copyright laws and treaties around the world. All such rights are reserved.

1916 Ernest Shackleton’s heroic voyage of survival © National Maritime Museum Greenwich

1919 The First Non-Stop Atlantic Flight ©

1922 Restoration of Harrison No 1 and No 3 Timekeepers © Tennants Auctioneers

1923 Neuchatel Prize © Liverpool World Museum

1925 Kew Record © La Timonerie Antiquités de Marine

1927 Marine Chronometer with visible seconds wheel © La Timonerie Antiquités de Marine

1930 Hertfordshire Chronometer © Christie’s Images Limited 1998

1944 Clock for Sir Winston Churchill’s private aircraft © Liverpool World Museum

1945 Nautical Distance Indicator © Liverpool World Museum

1950 Tide Gauge Indicator © Liverpool World Museum

1950 Advertisement © Liverpool World Museum

1953 Clocks for HMY Britannia © RYBritannia/BNPS

1958 Centenary Chronometer © Mr Mun Chor Weng

1965 Sir Francis Chichester and the Atlantic Challenge © Gipsy Moth Trust

1973 Buckinghamshire Table Chronometer © Christie’s Images Limited 2002

1977 Jubilee Marine Chronometer © Christie’s Images Limited 2011

1980 Crystal Table Chronometer © Christie’s Images Limited 2004

1985 Company archives donated to the Liverpool World Museum © Liverpool World Museum

1985 The International Chronometer Index © Old Royal Naval College Greenwich

You may share weblinks to the articles on our site either by directly sending the relevant URL or by using the article sharing tools that we provide.

You may publish articles from the site providing you acknowledge our site and the author of the article at all times. You must not misrepresent the content on our site by publishing quotes from it out of context. You must not modify the paper or digital copies of any materials you have printed off or downloaded in any way, and you must not use any illustrations, photographs, video or audio sequences or any graphics separately from any accompanying text.

You must not use any part of the content on our site for commercial purposes without obtaining a licence to do so from us or our licensors. If you print off, copy or download any part of our site in breach of these terms of use, your right to use our site will cease immediately and you must, at our option, return or destroy any copies of the materials you have made.

No reliance on information

The content on our site is provided for general information only. It is not intended to amount to advice on which you should rely. You must obtain professional or specialist advice before taking, or refraining from, any action on the basis of the content on our site. Although we make reasonable efforts to update the information on our site, we make no representations, warranties or guarantees, whether express or implied, that the content on our site is accurate, complete or up-to-date.

Limitation of our liability

Nothing in these terms of use excludes or limits our liability for death or personal injury arising from our negligence, or our fraud or fraudulent misrepresentation, or any other liability that cannot be excluded or limited by English law.

To the extent permitted by law, we exclude all conditions, warranties, representations or other terms which may apply to our site or any content on it, whether express or implied.

We will not be liable to any user for any loss or damage, whether in contract, tort (including negligence), breach of statutory duty, or otherwise, even if foreseeable, arising under or in connection with:

use of, or inability to use, our site;

use of or reliance on any content displayed on our site;

loss of profits, sales, business, or revenue;

business interruption;

loss of anticipated savings;

loss of business opportunity, goodwill or reputation; or any indirect or consequential loss or damage.

We will not be liable for any loss or damage caused by a virus, distributed denial-of-service attack, or other technologically harmful material that may infect your computer equipment, computer programs, data or other proprietary material due to your use of our site or to your downloading of any content on it, or on any website linked to it. We assume no responsibility for the content of websites linked on our site. Such links should not be interpreted as endorsement by us of those linked websites. We will not be liable for any loss or damage that may arise from your use of them.


We do not guarantee that our site will be secure or free from bugs or viruses. You are responsible for configuring your information technology, computer programmes and platform in order to access our site. You should use your own virus protection software.

You must not misuse our site by knowingly introducing viruses, trojans, worms, logic bombs or other material which is malicious or technologically harmful. You must not attempt to gain unauthorised access to our site, the server on which our site is stored or any server, computer or database connected to our site.

You must not attack our site via a denial-of-service attack or a distributed denial-of service attack. By breaching this provision, you would commit a criminal offence under the Computer Misuse Act 1990. We will report any such breach to the relevant law enforcement authorities and we will co-operate with those authorities by disclosing your identity to them. In the event of such a breach, your right to use our site will cease immediately.

Linking to our site

You may link to our site, provided you do so in a way that is fair and legal and does not damage our reputation or take advantage of it.

You must not establish a link in such a way as to suggest any form of association, approval or endorsement on our part where none exists.

We reserve the right to withdraw linking permission without notice. The website in which you are linking must comply in all respects with the content standards set out in our Acceptable Use Policy.

If you wish to make any use of content on our site other than that set out above, please contact us.

Third party links and resources in our site

Where our site contains links to other sites and resources provided by third parties, these links are provided for your information only.

We have no control over the contents of those sites or resources.

Our site may provide access to tools controlled by third parties which maybe co-branded with us. We take no responsibility for the usability or content or any other aspect of these tools.

Applicable law

These terms of use, its subject matter and its formation (and any non-contractual disputes or claims) are governed by English law whose courts shall have exclusive jurisdiction. Contact us To contact us, please email

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