Omega Seamaster 150M Aqua Terra 38,5mm Full Set Watch

Q: What is the Omega Seamaster Aqua Terra 150M 38.5mm?
A: It’s a Swiss‑made stainless‑steel wristwatch that balances sporty capability with dressy elegance. This example features a 38.5mm case, a grey “Teak Concept” dial with date, and a stainless‑steel bracelet with a push‑button deployment clasp. It’s delivered as a full set with original box and papers and is in very good vintage condition.

Q: Which movement does it use and what is the power reserve?
A: Aqua Terra 38.5mm models from this era typically house Omega’s Co‑Axial automatic movement (often Calibre 8500). Some variants feature different calibres, including later Master Co‑Axial versions. Power reserve is generally around 48–60 hours depending on the exact calibre. We can confirm the movement in this specific watch on request.

Q: Is it water‑resistant and can I swim with it?
A: The Aqua Terra line is rated to 150 metres when new. As a vintage/pre‑owned piece, water resistance cannot be guaranteed without recent gasket replacement and professional pressure testing. We recommend avoiding swimming or showering unless it has been freshly tested, and always ensure the crown is fully screwed down before any exposure to moisture.

Q: How do I set the time and date safely?
A: Unscrew the crown anti‑clockwise if your model has a screw‑down crown. Position 1: wind the movement (about 20–30 turns if it has stopped). Position 2: quickset the date. Position 3: set the time. Avoid changing the date between roughly 8pm and 2am. When finished, push the crown in and screw it down firmly to help maintain water resistance.

Q: What is the “Teak Concept” dial?
A: It’s a distinctive vertical‑striped dial inspired by the wooden decks of luxury yachts. On this watch it appears in grey, offering a refined, versatile look with excellent legibility and a date display at 3 o’clock.

Q: Does it have a sapphire crystal and an exhibition caseback?
A: Most Aqua Terra models feature a scratch‑resistant sapphire crystal with anti‑reflective treatment, and many have a sapphire display (exhibition) caseback. If you’d like us to verify the crystal and caseback specification on this exact watch, please contact us and we’ll confirm.

Q: Will it fit my wrist, and can the bracelet be resized?
A: This watch fits a wrist of approximately up to 18cm as listed. We can size the bracelet for you prior to dispatch, and additional links may be sourced subject to availability. Strap changes are also possible; share your wrist measurement and we’ll advise on sizing and suitable strap options for this reference.

Q: Is it anti‑magnetic?
A: Later Aqua Terra “Master Co‑Axial/Master Chronometer” models are highly anti‑magnetic (tested to 15,000 gauss). Earlier Co‑Axial versions offer everyday robustness but not the same anti‑magnetic rating. We can confirm whether this specific watch is a Master Co‑Axial or earlier Co‑Axial upon request.

Q: How does the Aqua Terra differ from the Seamaster Diver 300M?
A: The Aqua Terra aims for versatile, dress‑sport wear with a clean dial and 150m rating, while the Diver 300M is a purpose‑built dive watch with a rotating bezel, 300m rating and a more tool‑oriented aesthetic. The Aqua Terra typically wears slimmer and more refined under a cuff.

Q: What accuracy and service interval should I expect?
A: A healthy Co‑Axial Omega should keep excellent time in line with chronometer standards, though performance varies with age and service history. A routine service every 5–10 years is generally recommended, or sooner if accuracy or water resistance is a concern. 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 what warranty/shipping do you offer?
A: This listing is delivered as a full set with original box and papers. 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.