This timepiece is the OMEGA Seamaster 60 "Big Crown" vintage diver's watch, with the classic reference number Ref. 166.062. This classic timepiece was launched in 1969, with movement serial number 31430974, and was a highly representative mid-sized sports and diver's watch at the time. Dial: A very beautiful deep blue dial with a distinctive racing car-pattern (or racetrack lines) segmented outer bezel from the center to the outer edge, and a date window at 3 o'clock. The bezel features a bidirectional rotating two-tone diver's bezel. Movement: Powered by OMEGA's classic and renowned Cal. 565 automatic movement, featuring a unique "pull-out quick-set date" function (pulling the crown all the way out adjusts the date). Crown: Original classic Big Crown: Equipped with a large screw-down waterproof crown (Big Crown) with a diameter of approximately 6mm, the most recognizable design feature of this model. Watch Strap: Replacement brand new leather watch strap/clasp (not original) 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.