100% genuine vintage Seiko 8223A analog quartz movement. 

Please note the technical condition: 

A fresh battery has been installed on the bench, but the movement did not kick into life / is currently not running. 

It is being sold explicitly as a non-running  project, repair core, or a good source for original factory donor parts.

This specific movement features the official factory-stamped 470504T day disc assembly, built for 3 o'clock crown cases. The day disc is in English / French 

This is an unused movement. Unlike salvaged movement components pulled from old scrap watches, this movement has never been used 

Developed by the legendary Suwa division in Nagano Prefecture, Japan, the Calibre 8223A is globally respected by watchmakers as a premium, heavy-duty quartz engine built to last generations. Far superior to modern plastic throwaway modules, it features robust metal plates and integrated ruby jewel pivots to achieve exceptional longevity.

The 8223A was the dependable engine behind many iconic Seiko SQ, Sports 100, and Type II vintage references (including the popular 8223-7060, 8223-5120, and 8223-8010 models).

Because the 8223A platform powers highly collectible vintage lines, such as the iconic cushion-cased Seiko SQ, retro TV-dial variants, and the sought-after Japanese Domestic Market Seiko Type II collection, restoring them demands authentic parts. The most common failure point for 1980s quartz watches is structural circuit block destruction caused by dead batteries leaking across the mainplates.

 

The movement is being sold explicitly as a non-running  project, repair core, or a good source for original factory donor parts.

The battery is not included 

Posted quickly and packaged safely 

We have other genuine Seiko watch parts for sale