Q: What is the Bvlgari Diagono Aluminium 38mm (ref. AL38TA) from 2001?
A: It’s a vintage, Swiss‑made sports watch featuring a lightweight 38mm aluminium case, black rubber BVLGARI‑engraved bezel, cream dial with date, and a rubber‑and‑aluminium strap. This example is automatic and comes as a full set with its original box and papers.

Q: Is the movement automatic and how do I wind it?
A: Yes—this Diagono Aluminium is self‑winding. Normal wear will keep it running. If it has stopped, give the crown around 20–40 turns to start it, then wear regularly. Many similar models have a power reserve of roughly 38–42 hours, but this can vary; contact us if you’d like us to confirm the specifics for this piece.

Q: How do I set the time and date safely?
A: Gently pull the crown to the first position to wind (if needed), the second position to quick‑set the date (if applicable), and the third to set the time. Avoid changing the date between approximately 8pm and 2am to protect the mechanism. When finished, push the crown fully back in to maintain protection against dust and moisture.

Q: Is it water‑resistant and can I swim with it?
A: These models were originally rated for everyday water resistance, but on vintage pieces water resistance cannot be guaranteed without recent gasket replacement and pressure testing. We recommend avoiding swimming, showering or submersion unless it has been professionally re‑sealed and tested. Always ensure the crown is fully pushed in.

Q: What strap does it use, will it fit my wrist, and can it be resized?
A: It uses Bvlgari’s rubber‑and‑aluminium modular strap. This piece fits a wrist up to approximately 19.5cm as listed. We can usually adjust the fit by adding/removing modules (subject to availability). Note that rubber components can age and show cracks over time—this example has visible cracking as noted; we can advise on replacement options.

Q: Can I fit a standard third‑party strap?
A: The Diagono Aluminium uses a model‑specific attachment system rather than conventional spring bars, so standard straps typically won’t fit. Genuine Bvlgari straps or high‑quality compatible parts are recommended; we can help source and fit replacements where available.

Q: What materials should I be mindful of and how do I care for them?
A: The aluminium case is light and comfortable but can mark more easily than steel—avoid hard knocks and abrasive polishing. The rubber bezel and strap can be affected by solvents, perfumes, sun creams and strong UV; keep them away from chemicals, excessive heat and prolonged sunlight. Clean gently with a soft, slightly damp microfibre cloth and dry thoroughly.

Q: Does it have a sapphire crystal?
A: Many Diagono Aluminium models are fitted with scratch‑resistant sapphire crystals. If you’d like us to confirm the crystal type on this specific watch, please contact us and we’ll verify it for you.

Q: What accuracy and service interval should I expect?
A: A well‑maintained automatic watch should keep good time for its era, though performance varies with age and service history. A routine service every 5–10 years is commonly recommended, or sooner if you notice running fast/slow, moisture, reduced power reserve or difficulty setting the date/time. Keep it away from strong magnets and have gaskets checked periodically.

Q: What is included, and how do you guarantee authenticity and warranty?
A: This listing is delivered as a full set with original box and papers. A Retro Tale professionally authenticates every item and provides a 12‑month mechanical guarantee. We offer free, fully insured DHL shipping, a 14‑day return policy, and 0% customs fees for EU buyers. If you’d like additional photos or movement/reference verification, we’re happy to help.