拍品的狀況可能存在極大差異，而由於其性質使然，拍品難以處於完美無瑕的狀態。拍品均以拍賣時的狀況出售。

- Overall condition good. A few scratches throughout. Gross weight: 22 gr.
- O.Bachet & A. Cartier, 2020, expertise no. BC2003-59: Miniature prism clock, Cartier Paris, circa 1950. Particularity: based on the principle of the periscope, the small 'prism' clocks are an invention by Gaston Cusin, an optical effects specialist and a work colleague of Maurice Couët from 1919. In 1937, Cartier filed a patent which had for object 'a frame for the watch dial, the table clock (...) comprising essentially of a transparent element, simple or multiple, correctly positioned with respect to the article so that it became invisible or would reappear depending on the angle from which the clock case was being looked at. As a result, the clock had a certain mystery which whetted the appetite of the Customer. Due to their miniature size, these clocks are called 'Prism watch' in the Cartier terminology.
- Signed Cartier, no. 112459. Movement signed Cartier, no. 770661. Inside case signed European Watch & Clock Co. Made in France, no. 13459.
- Movement 16 jewels.
- The dial in good condition, small scratches.
- Movement ticking at time of cataloguing, working order and timekeeping cannot be guaranteed at time of purchase.
- Please see Important Notice at the back of the catalogue for all clocks and watches.