Grail Watch Reference

A Reference Library for Watches from Grail Watch

Welcome to Grail Watch Reference!

Welcome to the reference site for Grail Watch! This is a reference site only. Please visit the Grail Watch blog for regular posts. You can also find us on Facebook, Instagram, and Twitter.

See All Movements in the Database

How to Use Grail Watch Reference

Our watch movement database is currently online. Click “Movement Database” in the menu and use the filters to select a watch movement. You may then click on any detail to see all other movements that share that characteristic.

Here are some useful queries to get you started:

About Grail Watch Reference

This site is a database of reference information. We are initially focusing on watch movements, and are building a fully cross-referenced database of mechanical watch movements. In the future we may also include other things, including perhaps watch models and companies.

We are trying to be authoritative and correct, and are relying on manufacturer information as our primary source. Most information comes from manufacturer web sites, documentation, and publications. We are also using independent research and information from third parties where manufacturer information is unavailable.

All illustrations are official manufacturer photos and are used for commentary according to the press license of each company. We are attempting to include a link back to the official manufacturer web page where possible. We are also linking to Watch Wiki, Watchbase, and other sites where appropriate.

Updates from Grail Watch Reference

Travel Time Trio: ETA’s Calibre 2893

May 12, 2020
When ETA names a movement, they usually use the last digit or two to signify added functions, then a numeral after a dash to indicate an update. Cal. 2892-2 was an update to Cal. 2892, and that movement added a date complication to Cal. 2890. But this isn't how it works for ETA's "Travel Time Trio", Cal. 2893-1, 2893-2, and 2893-3. These were introduced...

Confirming the ETA 2892 Timeline

May 8, 2020
One of my goals with Grail Watch Reference is to use primary sources to develop the best information possible. Although many aspects of horology are widely reported as truth, we can not completely rely on these stories: There's just too much folklore out there! To illustrate, I will walk through my process of verifying the timeline of one of today's top...

Further Sellita Research: SW300 and More!

March 2, 2020
Continuing my research into the Sellita movements, I looked into the background of the SW300 and SW400 movements, as well as the compact SW100 and SW1000. Leveraging the Sellita documentation and website, I was able to uncover the launch chronology of these movements as well as lots of technical details. I was surprised to learn how similar most of the...

New Research: Sellita History

February 29, 2020
I did a little research over the weekend into one of the top movement producers in Switzerland, Sellita. It can be difficult to find details on under-the-radar companies like Sellita - they didn't exhibit at industry fairs and "have no particular need to advertise," according to a 2014 Europa Star article. They just quietly built over a million watch mo...

Updated Movement Family: Valjoux 23/72

February 28, 2020
One of the more popular movements in the history of horology, the high-end Valjoux 23/72 chronograph family is vast and confusing. It was in production for many decades (1916 through 1974, by reckoning) and there are over two dozen different related movements. I've been working to get my head around these for years, and this site has given me a platform...
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