LONGINES PRODUCTION YEARS

Longines production years

Longines' comprehensive archival records make dating their watches often more straightforward than with many other brands. The movement serial number, found engraved on the movement, can frequently be looked up in Longines' database to determine the production year. This service may be available through Longines' customer service, authorized service centers, or the brand's heritage museum. Collector-compiled serial number tables can also provide approximate dating.

In addition to serial number lookup, the caliber type and design characteristics can help narrow down the production era. Longines has used a wide variety of movements throughout its history, from early pocket watch calibers to modern ETA-based movements. The specific caliber, combined with the case style and dial design, can provide supporting evidence for dating, particularly when the serial number is not easily accessible.

For vintage Longines watches, the overall design language, logo style, and case construction can provide contextual dating clues. Longines published catalogs and maintained detailed records, and the brand's museum holds an extensive collection of historical materials. Collector communities dedicated to vintage Swiss watches and specifically to Longines are also valuable resources for identification and dating assistance.

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How to Date Your Longines Watch

To determine the approximate production year, start by locating the serial number on the case back or between the lugs. Compare this number against known production ranges for Longines. The model reference number can also help narrow down the production window, since specific references were only produced during certain periods.

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Things to Keep in Mind

Production dates are approximate. A serial number tells you when the case was manufactured, which may not match the movement production date or the actual sale date. Watches with replaced components (such as a new bracelet or service dial) may show mixed dates. Vintage models with limited documentation are especially difficult to date precisely.

More Longines Guides

Serial Number Guide Case Back Markings Bracelet & Clasp Codes Identify Your Watch

Related Markings

Deployment Clasp Marking

Markings found on a deployment (deployant) clasp that identify the clasp type, size, and brand. These help determine compatibility when replacing or servicing the clasp mechanism.

Case Reference Number

A manufacturer-assigned reference number identifying the specific watch case design, dimensions, and material. This is the primary identifier for sourcing correct case parts and compatible accessories.

Crown Logo Stamp

A brand logo or emblem stamped or engraved on the watch crown. This identifies the manufacturer and can indicate whether the crown is an original or replacement part.

Movement Country of Origin

A marking indicating where the watch movement was manufactured, such as "Swiss" or "Japan." This identifies the movement's origin, which often influences perceived quality and value.

Swiss Made Label

A legally protected designation indicating the watch meets Swiss origin requirements for movement, assembly, and quality inspection. "Swiss Made" is one of the most recognized quality marks in watchmaking.

German Made Marking

A marking indicating the watch was manufactured in Germany, typically associated with brands from the Glashutte or Pforzheim watchmaking regions. German watches are known for Bauhaus design and engineering precision.

Frequently asked questions

Can Longines look up the production date of my watch?

Longines maintains extensive historical archives and may be able to provide production date information based on the movement serial number. This service can sometimes be accessed through Longines customer service, authorized service centers, or the brand's heritage museum in Saint-Imier, Switzerland. This archival access is commonly considered one of the most comprehensive available from any watch brand.