Authentic Citizen CQ Tank watch, a vintage unisex model featuring a 23mm gold-tone stainless steel case and a sleek black dial with non-numeric hour marks. This listing is a PARTS/DONOR piece (model 6031-K04018)—perfect for restoration enthusiasts and collectors looking to salvage components or complete a project.

Condition note: This watch has been previously worn and shows scratches on the case and crystal. The movement does not run, and installing a new battery will not restore it. It is sold strictly as-is for parts or repair.

Why this Citizen CQ Tank is a smart choice for restorers and collectors

• Genuine vintage Citizen with Japanese origin, representing a classic tank-style silhouette that pairs well with modern or period-accurate collections.
• Partnership-ready components for restoration projects—useful as a donor for case, dial, crystal, crown, or other compatible parts on similar Citizen CQ Tank models.
• Clear model reference to ensure compatibility with other 6031-series watches and related quartz movements when sourcing parts.
• Distinctive aesthetics—the gold-tone finish on a compact 23mm case provides authentic vintage styling that can be showcased in a display or used to illustrate a restoration journey.

Ideal for

• Vintage watch collectors seeking authentic parts to complete or refresh a Citizen CQ Tank collection.
• Watchmakers and hobbyists who need a reliable donor for a restoration project or for learning repair techniques on quartz tank designs.
• Display enthusiasts who want to illustrate the evolution of Citizen’s tank-inspired lineup with a genuine part from a Japan-made lineage.

What you can expect and practical considerations

• This listing includes a single watch in the described condition. No additional parts or accessories are implied or included beyond the described item.
• Because the movement is non-functional and the watch requires repair, it’s best suited for parts salvage or a professional restoration plan rather than immediate wear.
• For successful restoration, verify compatibility with other Citizen CQ Tank models and consider sourcing a compatible movement, replacement crystal, and gaskets from reputable parts suppliers.
• Carefully assess the case, crystal, and dial for potential salvage value; even with condition issues, the original build and finish can provide a solid foundation for a faithful restoration.

If you’re ready to embark on a vintage Citizen restoration or need a precise donor for a 6031-K04018 project, this Citizen CQ Tank watch part is a thoughtfully chosen starting point. Combine it with trusted parts resources and a skilled watchmaker to bring a classic tank-era look back to life.