Q: What size is this Cartier Must 21 watch?
A: This watch has a case diameter of 31 mm. Compare this measurement with a watch you already wear to help judge your preferred fit.

Q: What wrist size will the bracelet fit?
A: The bracelet is listed as fitting a wrist measuring 17.8 cm or smaller. If you require an adjustment, ask about sizing before purchase; a smaller wrist may need the bracelet shortened.

Q: What condition is this watch in?
A: This pre-owned watch is in Very Good Condition, with light traces of use. The case and bracelet have scratches and marks, while the internal condition is rated Very Good. Please review the photographs for the visible wear.

Q: Is the Cartier Must 21 reference 9011 automatic or battery-powered?
A: Reference 9011 is a quartz, battery-powered model rather than an automatic watch. The product information does not specify the remaining battery life or the date of its last replacement.

Q: What should I do when the battery needs replacing?
A: Arrange a battery replacement through a Cartier boutique or authorised dealer. Cartier’s battery service includes a water-resistance test. Do not leave an exhausted battery inside the watch, as deterioration can damage the movement.

Q: Can I wear this watch while swimming or showering?
A: Water resistance and a recent pressure-test result are not specified for this particular watch. Avoid swimming, showering or immersing it unless a professional has confirmed its current water resistance and suitability for that use. Seals deteriorate with age, so an original rating alone is not sufficient reassurance.

Q: Does this watch come with a box, papers or other accessories?
A: No accessories are included with this watch. The product information lists it as watch only, without a box or papers.

Q: What are the reference number and year of manufacture?
A: The reference number is 9011. The year of manufacture is not specified, and the serial number is recorded as illegible, so an exact production year cannot be confirmed from the supplied information.

Q: How should I look after this pre-owned Cartier watch?
A: Keep it away from strong magnetic sources, extreme heat and impacts, and remove it for contact sports. Have its water resistance checked professionally before exposing it to water, and seek professional servicing advice if its timekeeping changes.