Brand: Omega. Model: : Constellation. Color: Blue. Material: Yellow Gold. Dimensions: 23.5mm. Country of origin: Switzerland. Condition: B - good condition. TBC reference (SKU): 1738457602827182 Condition: Good, but used. A good but used item will have been worn and potentially washed but will be in good condition and well taken care of. The item will have visible wear and tear but the defects will be minor. These have to be mentioned and visible in photos.