# Seiko and Citizen watch product releases

> Developing situation record from CLSTR: https://clstr.news/situations/seiko-and-citizen-watch-product-releases
> Updated: 2026-10-20T10:14:55.000Z. Sources: 6. Developments: 2.

Seiko and Citizen have introduced several new timepiece models. In late September, Seiko expanded its 5 Sports SKX SNZH line with “Tweed Green” and “Formal White” automatic variants, while Citizen launched two bicolor automatic diver-style watches in black and blue. 

By late October, Citizen announced the ‘Gradation Tsuno’ collection, featuring four chronograph models with gradient metal dials. Concurrently, Seiko announced a collaboration with retailer TiCTAC to release the HZB002J, a vintage-style mechanical automatic watch featuring an off-white dial designed to mimic aged tritium paint.

## Timeline

### 2026-10-20: Citizen and Seiko announce new watch releases

Citizen introduces the Gradation Tsuno chronograph collection with vibrant metal dials, while Seiko and TiCTAC announce a vintage-inspired white dial collaboration.

4 sources. https://clstr.news/cluster/citizen-and-seiko-announce-new-watch-releases

### 2026-09-25: Seiko and Citizen release new automatic sport watch models

Seiko and Citizen release new automatic sport watches, featuring bicolor designs and updated colorways for the autumn season.

2 sources. https://clstr.news/cluster/seiko-and-citizen-release-new-automatic-sport-watch-models

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Cite as: Seiko and Citizen watch product releases. CLSTR, https://clstr.news/situations/seiko-and-citizen-watch-product-releases