The authenticity of the watch has been checked and certified by Sebastian, who is one of Sweden's leading watch experts.

Q: What are the exact dimensions of this Panthère and why is it listed as 28 mm?
A: The reference WSPN0007 is the medium Panthère de Cartier. Cartier lists the case at approximately 27 mm wide by 37 mm lug‑to‑lug and about 6 mm thick. Many retailers round the width to 28 mm for simplicity, which is why you’ll sometimes see it referred to as 28 mm.

Q: What movement does it use and how long does the battery last?
A: It uses a high‑precision quartz movement. Cartier advises an average battery life of about 2–3 years in normal use. When the battery is replaced by Cartier, the case is resealed and water‑resistance is restored as part of the service.

Q: How water‑resistant is it—can I shower or swim with it?
A: The watch is rated to 3 bar/30 metres. That’s suitable for rain, handwashing and occasional splashes only. It is not intended for showering, swimming or submersion, as real‑world water pressure and temperature changes can exceed what a 3 bar watch is designed to handle.

Q: What crystal does it have and what is the blue stone on the crown?
A: The Panthère WSPN0007 features a scratch‑resistant sapphire crystal. The octagonal crown is set with a blue synthetic spinel cabochon, a hallmark Cartier detail.

Q: Will this watch fit my wrist, and can the bracelet be adjusted?
A: This piece is currently sized to fit a 16 cm wrist. The steel Panthère bracelet uses removable links and can be resized by a professional jeweller or Cartier boutique; extra links can usually be sourced if needed, subject to availability.

Q: What is included with this “full set” from 2017?
A: This example is described as a full set and includes its original box and outer box. Please refer to the Accessories section on this page for the exact contents; if you need confirmation of specific documents, contact us and we’ll be happy to help.

Q: Is this a women’s model and how does it wear?
A: The medium Panthère is widely worn by women and offers an elegant, jewellery‑like presence thanks to its slim profile and highly flexible bracelet. Its rectangular case wears slightly larger than the width suggests due to the 37 mm length.

Q: How should I care for the watch day‑to‑day?
A: Wipe the steel case and bracelet with a soft, dry cloth, and avoid contact with perfumes and harsh chemicals. Keep the watch away from strong magnets and impacts. Have water‑resistance checked after any battery change or if the watch experiences a shock.

Q: How often should it be serviced?
A: Replace the battery every 2–3 years. Cartier also recommends periodic functional checks; a battery service carried out by Cartier includes new seals and a water‑resistance test, helping to preserve the watch over the long term.