Jaeger-LeCoultre supplies movements to half the haute horlogerie industry. Patek, AP, Vacheron, IWC, and Cartier have all used JLC-made calibres at various points. That's worth knowing because the pre-owned JLC market doesn't really reflect that pedigree in pricing. Buyers know about the manufacture credentials, dealers know about them, but the...

The Reverso is one of the few watches that sells itself. The shape is unmistakable, the history runs back to 1931, and the swivelling case still feels novel even ninety years on. That single model carries enough of Jaeger-LeCoultre's brand identity that the pre-owned market often values other lines through...