Omega Seamaster 150M Aqua Terra Master Co-Axial 41,5mm Full Set Watch

Q: What is the Omega Seamaster Aqua Terra 150M 41.5mm being offered here?
A: It’s a versatile stainless‑steel Aqua Terra with a 41.5mm case, black vertical “Teak” dial with date, and a sapphire display back. Powered by Omega’s Co‑Axial calibre 8500 automatic movement, it blends dressy refinement with everyday robustness and is rated to 150 metres of water resistance.

Q: Which movement does it use and what is the power reserve?
A: This watch houses the Omega Co‑Axial calibre 8500, an automatic, chronometer‑grade movement with a bi‑directional rotor and an approximate 60‑hour power reserve. You can view the movement through the transparent case back.

Q: How do I set the time and date on the calibre 8500?
A: Unscrew the crown. Position 1: manual wind (about 20–30 turns if stopped). Position 2: the hour hand jumps in one‑hour steps for quick local‑time adjustment and to advance/retreat the date by passing midnight (no traditional quickset). Position 3: set minutes (the seconds hand stops). Push the crown in and screw it down firmly when finished.

Q: Is it water‑resistant and suitable for swimming?
A: The Aqua Terra is rated to 150 metres when new. For pre‑owned pieces, water resistance cannot be guaranteed without recent gasket replacement and pressure testing. If you intend to swim, we recommend a fresh pressure test; always ensure the crown is fully screwed down and avoid hot water/saunas.

Q: What are the key materials and dial features?
A: The watch features a stainless‑steel case and bracelet, a scratch‑resistant sapphire crystal with anti‑reflective treatment, a fixed steel bezel, and a black “Teak Concept” dial. Hands and indices are typically luminous for legibility in low light.

Q: How does it wear and what are the dimensions?
A: The case is 41.5mm in diameter and approximately 13mm in thickness, offering a balanced presence suited to daily wear and smarter occasions. It’s comfortable on medium to larger wrists while remaining refined under a cuff.

Q: Will the bracelet fit my wrist, and can it be resized?
A: As listed, it fits wrists up to approximately 18.5 cm. Resizing is done by adding or removing links (the clasp typically has limited micro‑adjust). We can size it before dispatch and may source extra links subject to availability—share your wrist measurement for advice.

Q: Is this a “Master Co‑Axial” anti‑magnetic version?
Our listing specifies the Co‑Axial calibre 8500. Some Aqua Terra models in this family were later offered as “Master Co‑Axial” with enhanced anti‑magnetic properties. If you’d like us to confirm the exact dial/movement specification on this serial, we’re happy to verify.

Q: What is included and what is the condition?
A: This is a full set delivered with the original box, authenticity cards and booklet. Overall condition is Very Good, with the hardware shiny and light scratches noted on the bracelet’s centre link. Please review the detailed photos for an accurate view.

Q: Do you guarantee authenticity, and what about warranty, servicing and shipping?
A: A Retro Tale guarantees 100% authenticity and provides a 12‑month mechanical guarantee. Routine service is generally recommended every 5–8 years depending on use and water‑resistance needs. We offer free, fully insured DHL shipping, a 14‑day return policy, and 0% customs fees for EU buyers.