Omega Seamaster 41mm Co-Axial Aqua Terra Full Set Watch

Q: What is the Omega Seamaster Aqua Terra 41mm Co‑Axial being offered here?
A: It’s a stainless‑steel Omega Seamaster Aqua Terra with a 41mm case, a black “teak” patterned dial with date display, and a transparent case back showcasing the Co‑Axial movement. This listing is delivered as a full set with original box and cards, making it a versatile, refined everyday luxury watch that transitions from office to weekend with ease.

Q: Which movement does it use and what is the power reserve?
A: Many Aqua Terra 41mm models feature Omega’s Co‑Axial Master Chronometer calibre 8900 with an approximate 60‑hour power reserve. Exact calibre for this specific watch can be confirmed on request. The movement is automatic (self‑winding), can be hand‑wound via the crown, and is visible through the transparent case back.

Q: Is it water‑resistant and suitable for swimming?
A: The Aqua Terra line is typically rated to 150 metres when new. With pre‑owned watches, water resistance cannot be guaranteed without recent gasket replacement and professional pressure testing. Avoid swimming or showering unless it has been freshly tested, and always ensure the crown is fully screwed down before any contact with moisture. Avoid hot water and saunas, which can stress seals.

Q: How do I set the time and date safely?
A: Unscrew the crown anti‑clockwise. Position 1: wind the watch (20–30 turns if it has stopped). Position 2/3: set the time. On many Master Chronometer Aqua Terra models (e.g., calibre 8900), the hour hand adjusts independently in one‑hour jumps; the date advances when you pass midnight, which replaces a traditional quickset date. As a precaution, avoid changing the date near midnight (roughly 8pm–2am). When finished, push the crown in and screw it down firmly to help maintain water resistance.

Q: What is Omega’s Co‑Axial technology and why is it valued?
A: The Co‑Axial escapement reduces friction compared to traditional lever escapements, helping improve long‑term precision and stability while potentially extending service intervals. It’s a hallmark of modern Omega mechanical movements and contributes to the brand’s reliability reputation.

Q: Is the Aqua Terra anti‑magnetic?
A: Master Chronometer Aqua Terra models are tested to resist very strong magnetic fields (Omega’s standard is up to 15,000 gauss). This listing includes a Master Chronometer card, indicating this watch belongs to that category. Even so, it’s best practice to keep any mechanical watch away from strong magnets; we can demagnetise a movement if needed.

Q: Will it fit my wrist, and can the bracelet be resized?
A: The bracelet length is listed at approximately 19.5 cm. We can size the bracelet for you prior to dispatch, and additional links may be sourced subject to availability. Share your wrist measurement and fit preference and we’ll advise the best sizing approach.

Q: Can I wear it on different straps, and what is the lug width?
A: The Aqua Terra pairs well with leather, rubber or steel. Many 41mm Aqua Terra models use a 20mm lug width; we’re happy to confirm the exact lug size and advise strap options for this specific watch. Use only quality, correctly sized straps to ensure secure fit and avoid case or lug wear.

Q: What accuracy should I expect, and how often should it be serviced?
A: A healthy Master Chronometer Aqua Terra typically keeps excellent time in line with Omega’s stringent METAS standards, though performance varies with age and service history. A routine service every 5–10 years is generally recommended, or sooner if you notice issues with accuracy, power reserve or moisture resistance. Keep the watch away from strong magnets, chemicals and extreme heat, and wipe it with a soft microfibre cloth after wear.

Q: What is included, and do you guarantee authenticity and offer a warranty?
A: This listing is delivered as a full set: box, outer box, card holder, international warranty card, pictograms card and Master Chronometer card (see Accessories). A Retro Tale rigorously authenticates every item and guarantees 100% originality. All watches include a 12‑month mechanical guarantee. We offer free, fully insured DHL shipping, a 14‑day return policy, and 0% customs fees for EU buyers; contact us for any specific delivery or warranty questions.