This is a vintage OMEGA mechanical watch from the 1947s, equipped with the classic Cal. 280 manual-winding movement. It belongs to the later representative models of the Omega 30mm series, renowned for its stable structure and high durability, and remains highly sought after by vintage watch collectors. This Cal. 280, 38.5mm diameter Omega watch is relatively rare on the market, making it an excellent choice for collectors who "want a large-diameter vintage watch" or "prefer the authentic vintage feel." 【Brand】Omega 【Model】2506-2 【Movement】Original Cal. 280 manual-winding movement 【Crown】Original crown 【Case Diameter】38.5mm (excluding crown) 【Dial】Restored dial 【Strap】Includes new leather strap (not original) 【Condition】Timekeeping/functions all working properly 【Year】Approximately 1947 Shipping: Delivery Method: Postal delivery, EMS. Estimated arrival time: 5-20 days after shipment. Arrival time may be delayed due to postal service or customs procedures. Tracking number provided. Customs and Taxes: Additional customs duties or taxes may apply depending on the import regulations of your country. These costs are borne by the buyer. It is recommended to check local customs policies before purchasing. After-sales Support: We are a pre-owned watch and antique dealer from Taiwan with over 20 years of experience. We aim to provide you with unique vintage watches. Upon receiving the watch, please carefully inspect it to ensure everything is working properly. If you encounter any problems, please feel free to contact our after-sales support team. We are committed to resolving issues quickly and professionally.