Q: What are the key features of this Omega Seamaster 2265.80? A: It is a 41 mm stainless steel Seamaster Diver 300M with an electric blue wave dial, date at 3 o’clock, unidirectional rotating bezel, screw‑down crown, helium escape valve, and a scratch‑resistant sapphire crystal. It is powered by the Omega quartz calibre 1538 and is water‑resistant to 300 metres. Q: Is this model still in production? A: No. The Seamaster 300M quartz ref. 2265.80.00 is discontinued. This example dates to 2007 and is offered as described in the product information. Q: What movement does it use and what are its perks? A: It uses Omega’s calibre 1538 quartz movement, known for reliability and convenience. It features a quick “jumping” hour hand for easy time‑zone changes and an end‑of‑battery‑life indicator on the seconds hand. Q: How long does the battery last and how will I know it needs replacing? A: Typical battery life is around 42 months. When the battery is low, the seconds hand will start moving in multi‑second jumps (commonly four‑second steps). That is your cue to book a battery change and water‑resistance check. Q: Is it suitable for swimming or diving? A: Yes—when properly sealed, it is rated to 300 m/30 bar and is suitable for recreational diving. Have gaskets and water resistance tested regularly and after any battery service. Ensure the crown and helium valve are fully secured before water use and rinse with fresh water after the sea. Q: What is the lug width and can I change straps easily? A: The watch has a 20 mm lug width, so it accepts most 20 mm straps. It comes on the original stainless‑steel bracelet with a folding clasp for secure wear. Q: What does “full set” mean here? A: Everything included with this piece is listed in the product information. For this watch, the listing notes a full set and box. If an item isn’t mentioned there, it is not included. Q: How will it fit my wrist and can it be adjusted? A: This example is sized to fit up to approximately 18.5 cm and comes with two extra links. The bracelet can be adjusted by adding or removing links; additional links can be sourced if needed. Q: Any care tips for this vintage‑era Seamaster? A: Wipe with a soft cloth, avoid harsh chemicals and extreme temperatures, and keep crowns fully secured near water. Plan for a battery change every 3–4 years with a pressure test, and have seals inspected periodically to maintain water resistance.