OmegaSeamaster Diver 300m 42mm 2018 Full Set Watch

Q: What year and reference is this Omega Seamaster?
A: This watch is listed as a 2018 Omega Seamaster Diver 300M, reference 212.30.41.20.03.001, made in Switzerland.

Q: What size is this watch, and which wrist sizes will it fit?
A: The product information lists a case diameter of 42 mm. The bracelet currently fits a 17 cm wrist or smaller, and five extra links are included. The maximum wrist size after adding the links is not specified.

Q: What condition is this pre-owned watch in?
A: It is listed in Very Good Condition, with light traces of use. There are scratches on the case and bracelet, and the internal condition is also described as Very Good.

Q: What is included with the full set?
A: The product information lists the box, outer box, warranty card and extra bracelet links. Please note that the box interior is peeling. The presence of a warranty card does not by itself confirm that a manufacturer's warranty remains valid.

Q: Is this Seamaster automatic or battery-powered?
A: This reference uses Omega's self-winding Co-Axial calibre 2500, a mechanical movement rather than a battery-powered quartz movement. Its specified power reserve is approximately 48 hours when fully wound; the actual power reserve of this pre-owned watch has not been provided.

Q: What materials and dial features does this model have?
A: This reference has a stainless steel case and bracelet, a blue dial with a date window at 3 o'clock, a blue ceramic unidirectional rotating bezel and a sapphire crystal with anti-reflective treatment.

Q: Can I swim or dive with this pre-owned Seamaster?
A: The model has a manufacturer's water-resistance rating of 300 metres, but a recent pressure-test result is not supplied for this watch. Have its water resistance checked by a qualified watchmaker before swimming or diving rather than relying on the original rating alone. Omega recommends a yearly water-resistance check.

Q: Has this watch been serviced, and how often should it be serviced?
A: A service history or last service date is not provided in the product information. Omega generally recommends a complete service every 5–8 years. Ask for any available service records and seek a watchmaker's assessment if the service history is unknown or the watch develops running issues.

Q: What is the rotating bezel used for?
A: The unidirectional rotating bezel is used to track elapsed time. Its one-way rotation is a dive-watch safety feature designed to reduce the risk of accidentally indicating a shorter elapsed time.