We make luxury accessible for all. We are proud to offer only the finest certified vintage and second-hand fashion accessories from the world's most exclusive fashion houses. All products meet our strict standard of excellence.
We make luxury accessible for all. We are proud to offer only the finest certified vintage and second-hand fashion accessories from the world's most exclusive fashion houses. All products meet our strict standard of excellence.We make luxury accessible for all. We are proud to offer only the finest certified vintage and second-hand fashion accessories from the world's most exclusive fashion houses. All products meet our strict standard of excellence.
This Bvlgari Diagono Aluminum Ref. BB40AT showcases the brand's innovative approach to luxury sports watches. The 40mm aluminium case with distinctive black rubber bezel and integrated rubber strap creates a bold, contemporary aesthetic. Featuring an automatic movement and practical date display, this timepiece transitions effortlessly from active pursuits to sophisticated evening occasions. Complete with its original box, this iconic Diagono represents Bvlgari's mastery of combining technical excellence with Italian design flair.
Please note that the majority of our items are vintage and therefore have tales to tell unless stated otherwise. Therefore, please look at pictures, descriptions and measurements provided as they give you the best idea of the story this item has to tell.
* Please note that when you buy a vintage product, the dimensions may vary slightly from a new one depending on previous care and storage.
Q: What is the Bvlgari Diagono Aluminum 40mm Ref. BB40AT? A: It’s a Swiss‑made luxury sports watch featuring a 40mm aluminium case, a distinctive black rubber bezel with BVLGARI engraving, a black dial with date, and an integrated black rubber strap with aluminium links. It uses an automatic movement and blends technical practicality with bold Italian design.
Q: What are the key materials and design features of this model? A: The case is aluminium for lightness, paired with a black rubber bezel and an integrated rubber strap that includes aluminium link elements. The dial is black with a date display, and the overall aesthetic is contemporary and sporty while remaining refined for everyday and evening wear.
Q: Which movement does it use and what power reserve should I expect? A: It houses a Swiss automatic movement (often ETA‑based in this model family). Typical power reserve for comparable automatic calibres is around 38–42 hours. We can confirm the exact calibre in this specific watch on request.
Q: Is it water‑resistant and can I swim with it? A: As a pre‑owned/vintage piece, water resistance cannot be guaranteed without recent servicing and pressure testing. Treat it as splash‑resistant at best and avoid swimming or showering unless the gaskets have been replaced and the watch has been professionally tested. Always keep the crown fully secured/pushed in before any exposure to moisture.
Q: How do I set the time and date safely? A: If the crown is screw‑down, first unscrew it anti‑clockwise; otherwise, gently pull it out. Position 1: wind the watch (about 20–30 turns if it has stopped). Position 2: quickset the date (if your movement supports it). Position 3: set the time. Avoid changing the date between roughly 8pm and 2am to protect the mechanism. When finished, push the crown in (and screw it down if applicable).
Q: What type of crystal does the Diagono Aluminum use? A: Many Diagono Aluminium models are fitted with a scratch‑resistant sapphire crystal. We’re happy to verify the crystal type on this exact reference for you on request.
Q: How should I care for the aluminium case and rubber components? A: Wipe surfaces with a soft, dry microfibre cloth. Avoid abrasive polishes, solvents, perfumes, sunscreens and saltwater, which can mark rubber and encourage oxidation/pitting on aluminium. Store away from high heat and humidity. If moisture resistance matters, have seals inspected periodically. Light wear and patina on aluminium and rubber are normal for this model family.
Q: Will it fit my wrist, and can the strap be resized? A: This watch fits a wrist up to approximately 21cm as listed. The integrated rubber strap with aluminium links can typically be adjusted by repositioning/removing link modules or at the clasp. Share your wrist measurement and we’ll advise or size it prior to dispatch; sourcing extra link elements may be possible subject to availability.
Q: Can the rubber bezel or strap be replaced? A: Yes—replacement rubber components should be fitted by an authorised Bvlgari service centre or experienced specialist to ensure correct fit and sealing. Availability can vary by reference and production period; some third‑party parts may not fit properly. Contact us if you’d like help sourcing genuine components.
Q: What accuracy and servicing interval should I expect? A: A healthy Swiss automatic should keep good time, though performance varies with age and service history. A routine service about every 5–10 years is typical, or sooner if you notice issues (running fast/slow, moisture). Keep the watch away from strong magnets and wipe it clean after wear.
Q: What is included, and do you guarantee authenticity and provide a warranty? A: This listing is delivered with box as stated. 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; please contact us for any specific delivery or warranty questions.
SHIPPING
All orders are insured and trackable. Once your shipment has been issued, a link to our Track & Trace service will be provided where you can track your shipment and check delivery status online.
We ship all orders from Sweden, and when importing to Canada your order may be subject to import duties and sales tax, which will be charged to you upon delivery by the shipping carrier.
These charges are typically collected by the shipping carrier at the time of delivery and are not included in the product price.
RETURNS
A Retro Tale offers 14 days return policy upon receipt of your order.
In order to request a return, please email [email protected] with your order number and state ”return request” in your email. From there, our Customer Support will confirm that your return request has been approved and further instructions will be provided by email.
AUTHENTICITY GUARANTEED
A Retro Tale specialises in vintage and pre-owned goods from the world's most loved fashion houses. We guarantee that all of our products are 100 percent authentic. Every item sold on our site undergoes a rigorous authentication process, in which our experts delve deep into the heritage of a brand via its craftsmanship techniques. This requires a rigorous and methodical process.
For us, authentication is about more than expertise; it offers a fascinating insight into the history of fashion and the craftsmanship involved in production.
Please note that all return shipments to A Retro Tale must be traceable. Retain your shipping receipt and tracking number until the return is completed and your refund is processed. Return shipping costs will be covered by A Retro Tale, and we will provide you with a prepaid return label.
Please allow up to 10 business days for your return to be completed from the return shipping date as shipping time might vary depending on shipping country and shipping provider.
/ Watches
/ Men's Watches
45%
off retail price
• 40mm aluminium case
• Black rubber bezel with Bvlgari logo engraving
• Black dial with date display
• Black rubber strap with aluminium links
• Automatic movement
• Reference No. BB40AT
