Cartier 21 Must 31mm 2006 Full Set Watch

Q: What size is this Cartier 21 Must watch, and how does it wear on the wrist?
A: This watch has a 31 mm case, which gives it a refined mid-size look that suits many wrist sizes. For this specific piece, the bracelet is currently sized to fit a 15 cm wrist or smaller, and it comes with 5 extra links for adjustment.

Q: What movement does this watch use?
A: This Cartier 21 Must Ref. 1330 uses a quartz movement, which is prized for accurate, low-maintenance timekeeping and everyday ease of use.

Q: How often will the battery need replacing?
A: Quartz Cartier watches typically need a battery change every 2 to 3 years, depending on use and storage. It is best to have this done professionally so the seals can be checked or replaced at the same time.

Q: Can I swim or shower with this watch?
A: We would not recommend it. Vintage Cartier watches like this one may originally have been rated for light water resistance, but age affects seals over time. Unless the watch has recently passed a pressure test, it is safest to treat it as splash-resistant only and avoid swimming, showering, or full submersion.

Q: What materials and design details does this watch have?
A: This piece features a stainless steel case and bracelet, an engraved Roman numeral bezel, a silver dial, blued steel hands, and a blue cabochon crown. These are signature details that give the Cartier 21 Must its elegant, recognisable look.

Q: What is included with this watch?
A: This watch is listed as coming with a full set, including the box and outer box. Everything included with the piece should be checked against the Product information and photos on the listing.

Q: What condition is this watch in?
A: The watch is listed in Very Good condition overall, with very good external and internal condition. The hardware is described as shiny with light scratches, which is normal wear for a vintage pre-owned piece.

Q: Is this a good everyday watch?
A: Yes, many buyers choose the Cartier 21 Must as an everyday luxury watch because the quartz movement is easy to live with and the 31 mm size is versatile and understated. As a vintage watch, it should still be worn with sensible care and stored properly when not in use.

Q: How should I care for a vintage Cartier quartz watch like this?
A: Keep it away from water, steam, and very hot environments, and make sure the crown is fully pushed in after setting the time. For long-term care, have the battery and seals checked regularly by Cartier or a qualified authorised watch specialist.

Q: How is authenticity handled for this watch?
A: At A Retro Tale, watches are vetted by in-house experts before sale. For a vintage Cartier, authentication is typically supported by checks of the dial, case, movement, serial and reference details, materials, and overall construction.