Longines Master Collection 38mm Ref L2.628.4.51.6 Full Set Watch

Q: What is the Longines Master Collection 38mm Ref. L2.628.4.51.6?
A: It’s a Swiss‑made, automatic stainless‑steel dress watch with a 38mm case, date function and black dial, delivered as a full set with its original box. This example is in very good condition and comes on a matching stainless‑steel bracelet.

Q: Which movement does this model use?
A: Master Collection pieces of this era typically house a Longines automatic calibre from the L619/L888 family (exact calibre can vary by production run). We can confirm the precise movement in this watch by reference to its serial number on request.

Q: Is it water‑resistant and can I swim with it?
A: Many Master Collection references were originally rated to everyday splash resistance (commonly 30–50 metres), but water resistance on vintage/pre‑owned watches is not guaranteed without recent testing. We recommend avoiding swimming, showering or submersion unless the gaskets have been replaced and the watch pressure‑tested. Always ensure the crown is fully pushed in before any exposure to moisture.

Q: How do I wind and set the time and date?
A: If the watch has stopped, manually wind the crown (in the pushed‑in position) 20–30 turns to start. Pull the crown to the first click to quickset the date, and to the second click to set the time. Avoid changing the date between approximately 8pm and 2am to protect the mechanism. Push the crown back in when finished.

Q: Will the 38mm size suit my wrist?
A: 38mm offers a refined, versatile profile that suits many small‑to‑medium wrists and those who prefer a classic proportion on larger wrists. If you’d like personalised fit advice, share your wrist measurement and we’ll guide you.

Q: What is the bracelet length and can it be resized?
A: The bracelet fits up to approximately 20.25cm and includes two extra links. We can size the bracelet prior to dispatch, and additional links can often be sourced subject to availability. Contact us with your wrist size for assistance.

Q: Does it have a sapphire crystal or display back?
A: Most Longines Master Collection models feature a scratch‑resistant sapphire crystal, and many have a transparent caseback. Specifications can vary by reference and year; we’re happy to confirm the crystal and caseback type for this specific watch.

Q: How accurate should it be and when should I service it?
A: A well‑maintained Swiss automatic should keep reliable everyday time, though performance varies with age and service history. As a guideline, mechanical watches are often serviced every 5–7 years, or sooner if you notice running fast/slow, moisture, or reduced power reserve. This watch is sold with A Retro Tale’s 12‑month mechanical guarantee.

Q: Is the watch authentic and what is included?
A: A Retro Tale specialises in authentic luxury vintage pieces. Every watch is professionally inspected and authenticated. This listing includes a full set with original box; please refer to the Accessories section for details, and ask us if you’d like additional photos or movement confirmation.

Q: Can I swap the bracelet for a strap and what is the lug width?
A: Many owners enjoy pairing Master Collection cases with leather straps for a dressier look. We can recommend compatible strap options and confirm the exact lug width for this reference on request. Always use the correct spring bars and have changes done by a professional to avoid damage.