Cartier 21 Must 28mm Watch

Q: What size is this watch, and how does it wear?
A: This Cartier 21 Must has a 28 mm case, giving it a compact and classic vintage look on the wrist. It is best suited to those who prefer a smaller, refined watch profile.

Q: Will this watch fit my wrist?
A: The bracelet is currently sized to fit a wrist of 15 cm or smaller. If your wrist is larger, the fit may be too snug unless it can be adjusted by a watchmaker or fitted with additional links.

Q: Is this a quartz or mechanical watch?
A: Reference 1340 is generally a quartz Cartier model, meaning it is battery-powered rather than manually wound or automatic. That makes it straightforward for day-to-day wear and easy to maintain.

Q: What are the key design details of this watch?
A: This piece features a two-tone stainless steel and gold-plated bracelet, an engraved Roman numeral bezel, a cream dial, blue steel hands, and Cartier’s signature blue cabochon sapphire crown. It is a Swiss-made vintage design with a distinctly timeless look.

Q: What condition is the watch in?
A: The watch is listed in good overall condition. Please note that there are scratches on the case and bracelet, while the internal condition is described as good.

Q: Is it safe to wear this watch in water?
A: As this is a vintage watch, we recommend treating it as splash-sensitive unless it has been recently pressure-tested by a professional. It is best to avoid showering, swimming, or prolonged exposure to water.

Q: When should the battery be changed or the watch serviced?
A: Quartz Cartier watches typically need a battery change every few years. If the watch stops, loses time, or shows irregular seconds-hand movement, it is best to have it checked by Cartier or a qualified watchmaker.

Q: Does this watch come with the original box, papers, or extra accessories?
A: No. According to the product information, this watch comes with no accessories.

Q: Is the serial number or production year known?
A: The serial number is noted as illegible, and the exact production year is not specified in the product information. The reference number is 1340, which identifies it as a vintage Cartier 21 Must model.

Q: How should I care for a vintage two-tone Cartier watch?
A: Wipe the case and bracelet gently with a soft, dry cloth after wear, and avoid perfume, cleaning chemicals, humidity, and knocks. Careful storage and periodic professional servicing will help preserve both the appearance and the function of the watch.