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정품인증서

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Historical information about a Longines watch

Longines has meticulously recorded each of its watches' serial numbers since 1867. This means Longines is able to provide a service that is greatly appreciated amongst admirers of the brand the world over and is available only to watch owners who have had their timepiece for a certain amount of time.

To receive the information kept in the Longines archives concerning your watch by email, we ask that you provide us with the serial number (numerical characters, from 5 to 8 digits) that is engraved either on the back of the watch, on the inside of the case back, or on the movement itself. In the last two cases, you will have to open the watch or have it opened by a watchmaker.

High-quality photographs of your watch (dial, case back and, if possible, the inside of the case back and the movement) are essential.

Two additional services are also offered by the brand:

  • An "Extract from the Archives", on official Longines paper in English, indicates the information kept in the Longines archives about each timepiece. Please provide us with the serial number of the watch, high-quality photographs and your full postal address. This document does by no means certify the authenticity of the watch or its components.

  • A "Certificate of Authenticity", signed by our President, can be issued if the piece is authenticated by one of our watchmakers. To do so, you will need to send us the watch. This document, written in English, describes the state of the timepiece upon examination in St-Imier.
These services are provided free of charge, however, the shipping costs and import duties linked to the sending of a watch for authentication remain payable by the client.

Time frames:
Information by email: 1 to 2 weeks
Extract from the Archives: 2 to 3 weeks + shipping time
Certificate of Authenticity: 2 months + shipping time

If you own a Longines watch and wish to request one of these services, please contact us using the form on the www.longines.com website and choose the following reason for contacting us: "Historical information on a Longines watch". Be sure to complete all the fields and indicate the nature of your request.

Please note that Longines does not provide estimations of the current value of an antique watch. The value depends on fluctuations in the antiques market, the nature of supply and demand, the watch's state of preservation and operation, and many other criteria that require a specialist's opinion.
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