Rolex Datejust 36mm Ref 1603 Very Rare White Dial 1970 Watch

Q: What is the Rolex Datejust 36mm Ref. 1603 from 1970?
A: It’s a vintage Rolex Datejust with a 36mm stainless steel Oyster case, engine‑turned steel bezel, and a very rare original white dial. This example comes on a stainless steel Jubilee bracelet and is powered by an automatic self‑winding movement.

Q: Which movement does the 1603 typically use, and is the date quickset?
A: Most Ref. 1603 models from around 1970 house a Rolex 15xx series automatic calibre—commonly the 1575 for date models. The date is non‑quickset on this era; to advance the date you rotate the hands past midnight. We can confirm the exact calibre in this specific watch upon request.

Q: Does it have an acrylic or sapphire crystal, and is there a Cyclops magnifier?
A: Period‑correct 1603 Datejust models from 1970 typically feature an acrylic crystal with Rolex’s Cyclops magnifier over the date. If you’d like, we can verify the crystal type on this exact piece.

Q: Is it water‑resistant, and can I swim with it?
A: The Oyster case was originally rated to 100 metres, but water resistance on vintage watches cannot be guaranteed without recent servicing and pressure testing. We recommend avoiding swimming or showering. If any moisture exposure is expected, ensure the crown is fully screwed down and have the seals checked by an authorised watchmaker.

Q: How do I set the time and date on a non‑quickset Datejust?
A: Unscrew the crown anti‑clockwise. Position 1 (crown unscrewed but not pulled): wind the watch 20–30 turns if stopped. Position 2 (crown pulled out): set the time. To advance the date, roll the hands past midnight repeatedly until the correct date is reached. Avoid changing the date between about 8pm and 2am to protect the mechanism. Push the crown back in and screw it down firmly when finished.

Q: What bezel and bracelet does the Ref. 1603 have?
A: The 1603 is known for its engine‑turned stainless steel bezel, giving a refined, textured look distinct from the fluted bezels found on other Datejust references. This watch is fitted with a stainless steel Jubilee bracelet for a classic, comfortable wear.

Q: Will the 36mm size suit my wrist, and can the bracelet be resized?
A: 36mm offers a timeless, balanced profile that suits many wrists and is widely worn unisex today. This bracelet fits a wrist up to approximately 20cm. We can size the bracelet for you, and additional links can often be sourced subject to availability and potential cost—contact us with your wrist measurement for guidance.

Q: What is included, and how do you guarantee authenticity?
A: This watch is delivered without accessories (no box/papers unless stated). A Retro Tale specialises in authentic luxury vintage pieces; every item is professionally inspected and authenticated. We provide a 12‑month mechanical guarantee on all watches.

Q: How can I verify the exact reference and production year?
A: The reference number is typically found between the lugs at 12 o’clock and the serial number at 6 o’clock (bracelet removal required). This example carries serial 2549999, dating it to 1970. We’re happy to share additional photos or details and help verify these markings.

Q: What accuracy and service interval should I expect, and how should I care for it?
A: A well‑maintained vintage Rolex should keep good time, though tolerances vary with age and service history. A routine service every 5–10 years is generally recommended, or sooner if timekeeping or water‑resistance concerns arise. Clean gently with a soft microfiber cloth, avoid strong magnets and harsh chemicals, and note that acrylic crystals can often be polished lightly to reduce minor scratches.

Q: Can I swap the bracelet for a strap, and what is the lug width?
A: Yes—many owners enjoy leather or other straps on the 36mm Datejust. Most Ref. 1603 cases use a 20mm lug width; choose straps and end‑links that match this size and are compatible with the model. We can advise on suitable strap options if you’d like to change the look.