☺ Overhauled and guaranteed to work ☺ ★★★ Genuine Product - Guaranteed Authentic ★★★ This item was purchased by my family's watch shop at a used goods market, which only those with a used goods dealer's license can enter. I personally purchased and am now selling it. All wristwatches have been overhauled and maintained, with every detail of the internal mechanisms checked. Therefore, you can be 100% assured of their authenticity. This is a vintage OMEGA Seamaster COSMIC 2000, a ladies' watch. The Seamaster COSMIC 2000 differs from the conventional screw-back Seamaster, featuring a unique structure where the movement is sealed in a container and then covered with a jacket. It has a mid-century design, like a futuristic evolution of the C-line Constellation. This is an extremely rare combination of a gold case and a brown dial. Even among Seamasters, this one has a chic and mature atmosphere, rather than a rugged one. The body is made of yellow gold-plated material. It has a round, funny form, but the thick and large case exudes an aura of sophistication. The dial has a gradient color, darkening from the center outwards. The movement is automatic. A dark brown leather strap has been selected, but a black strap is also included as a replacement. The buckle is a genuine Omega product. The timegrapher measurement shows the watch's daily error to be approximately +10 seconds, resulting in high precision. The width of the body is approximately 25mm (excluding the crown). While it still has some degree of moisture and dust resistance, it is an old watch, so please treat it as a non-waterproof watch (sweat in the summer is not a problem). Although the watch is in very clean condition, it is a used item, so please understand that there may be inconspicuous scratches and age-related deterioration. ★ Old automatic watches, if they are in poor condition due to heavy use, often have loose or worn automatic rotor shafts, which reduces winding efficiency, causing the watch to stop the next morning, become unstable in accuracy, or make unusual noises while being worn. Automatic watches that make a "clack-clack" sound when shaken are likely to have a damaged rotor shaft, requiring parts replacement or repair (repair costs are very high). I do not sell items in such poor condition, so please buy with confidence.