Q: What are the case dimensions and how does this ref 3170 wear on the wrist?
A: The Tank Solo ref 3170 is the small model, measuring approximately 24 mm wide by 31 mm tall and around 5.5–5.6 mm thick. With its slim profile and rectangular shape, it wears elegantly and compactly. This example is currently sized to fit a wrist up to 16 cm; the stainless-steel bracelet can be adjusted by removing links.

Q: What movement powers this watch?
A: It uses the Cartier quartz calibre 157 (two hands, 4 jewels). It is a reliable Swiss-made movement known for accuracy and low maintenance, and it uses a 321 (SR616SW) battery.

Q: How accurate is the Cartier calibre 157?
A: Quartz movements are generally highly accurate, typically deviating by only a few seconds per month in normal use. Accuracy can vary slightly with battery health and temperature.

Q: How long does the battery last and what does a battery change involve?
A: Typical battery life is about 2–3 years. During a proper battery service, the watch should have its seals inspected/replaced and be tested for water resistance after closing, which is standard procedure at Cartier service centres and by qualified watchmakers.

Q: Is it water-resistant and can I swim with it?
A: The Tank Solo line is rated to 3 bar (30 metres). That rating is suitable for everyday splashes and rain but not for swimming, bathing, or saunas. After any battery change, have the watch pressure-tested before exposure to water.

Q: What materials and design details does this model feature?
A: It has a stainless-steel case and bracelet, a white/silvered dial with Roman numerals, blued steel sword-shaped hands, and a beaded crown set with a blue synthetic cabochon. The crystal is sapphire and the watch is Swiss made—iconic hallmarks of the Tank Solo design.

Q: Is this considered a women’s watch or unisex?
A: It is commonly classified as the small model and often worn by women, but the 24 × 31 mm size suits anyone who prefers a compact, elegant watch. Style is ultimately personal.

Q: What do the reference and serial numbers signify?
A: The reference number 3170 identifies this specific Tank Solo variant. The serial number (578308UX) uniquely identifies this individual piece and is checked during authentication and record-keeping.

Q: What is included with this specific watch?
A: According to the product information, this piece comes with its original box. If items such as paperwork or extra links are not listed in the product information, they are not included.

Q: Any care tips for daily wear?
A: Avoid prolonged water exposure, chemicals, and strong magnets. Clean the case and bracelet occasionally with a soft, slightly damp cloth and dry thoroughly. Have the seals and battery checked when replaced to maintain water resistance.