The curved Tank in gold, with its reference on the listing.

Cartier is the house that made the wristwatch a shape rather than a circle: the Tank of 1917, the Tortue of 1912, the Tonneau of 1906, each a case with Roman numerals, blued sword hands and a cabochon in the crown. Cartier makes them in gold and in steel, in quartz and in mechanical, and on the pre-owned market the gold ones sit where a Rolex Datejust does in price and a step above it in how they read across a table.

The Tank Americaine of 1989 took the elongated Tank Cintree shape and made it a water-resistant, curved-back watch in gold; the small size is the one Cartier meant for women and that men with slim wrists have adopted. W2607456 is the small quartz version in yellow gold on a strap. WGACA is the one Luxury Stores reseller on this page that prints a Cartier reference in its title, which means the caseback can be checked against it; the rows that say rose gold are a data-entry slip, the photograph is plainly yellow.

WGACA gives the reference W2607456, the metal as gold, the dial as white, the size as 19 by 35mm, the strap as leather at 8.0 inches, the condition as Excellent with minor scratching to hardware and wear to the strap, and Switzerland as the origin. Its rows say rose gold for the band and dial, which the title and photograph contradict, and the copy says so. Box and papers are not mentioned. Quartz is per the reference; 30 metres is Cartier’s figure for the model, marked confirm.

WGACA authenticates in-house and is not a Cartier authorised dealer, and Amazon adds its 30-day return window. Ask whether the box and papers are included, for close-up photographs of the case, and when it was last serviced. Nothing here was measured on the watch.

This unit is sold by What Goes Around Comes Around (WGACA), a reseller that authenticates in-house through Amazon Luxury Stores, authenticated by the seller with Amazon’s 30-day return window on top; it is one piece, and when it sells the listing goes away, so the second button opens the live search for Tank Americaines.

Gold Cartiers have resold close to what pre-owned buyers paid, sometimes more, sometimes less; that is a pattern, not a promise, and nothing here is investment advice.