Visual Description
The London Crash has an asymmetric, distorted case in 18k yellow gold, about 43 mm long. Its width depends on where it is measured: Phillips gives 24 or 25 mm and Christie's 22.3 mm. The white dial carries black painted Roman numerals that distort with the case and is signed London, and the hands are blued steel. The case back is solid, secured by screws, with London hallmarks and, on many examples, the JC maker's mark inside. The leather strap closes with an asymmetric 18k gold Cartier deployant buckle, often stamped with the watch's case number.
Reference Significance
This is the Crash in its original form, made by the London branch that launched the design in 1967. Auction catalogs credit it to Jean-Jacques Cartier, who ran Cartier London, working with the designer Rupert Emmerson, and Phillips describes it as a modified Maxi Baignoire Allongée. The Jaeger-LeCoultre Cal. 841 movement and the London signature set it apart from the Paris pieces that followed: the Paris 1991 edition of 400 measures 38 × 23 mm and runs on a Cartier caliber, and the Ref. 2463 of the early 2000s is rose gold.
Historical Context
The first-series cases were made by Wright & Davies from 1967, and Christie's says the first pieces were assembled with Cartier London's head watchmaker, Eric Denton. Dated first-series examples carry London hallmarks for 1967 and 1970.
Cartier London made the Crash again in the late 1980s. Catalogs date examples to about 1987, to 1988 by a Cartier certificate, to 1989 and to 1990, and Sotheby's names the maker of the late-1980s run as Arthur Withers. Datings can differ even for one watch: case 40237 was offered in 2012 as hallmarked 1989 and sold again in 2024 with a Cartier certificate dating it to 1988. Sotheby's catalogs case 39153A, hallmarked for 1987, as one of three London Crashes made that year as a special order, according to Cartier's Geneva archivist.
How many were made is not known. Sotheby's says the first series probably numbered fewer than a dozen, and Christie's puts the first run at about 20.
What to Look For
Read the inside of the case back for London hallmarks and the JC maker's mark, and check that the case number matches the number stamped on the deployant buckle. The movement should be the hand-wound Jaeger-LeCoultre Cal. 841. Catalogs give it 17 or 18 jewels, and one Sotheby's catalog lists a cal. K840 for a 1970 example, so ask for movement photographs. The dial should be white and signed London.
Expect the case to measure about 43 mm long, with widths from 22.3 to 26 mm depending on where it is measured. A Cartier certificate or a documented auction history helps date a particular watch: the 1988 example had changed hands in 1989, 1998 and 2012 before it sold in 2024.

