Buying notes: Buy Jaeger-LeCoultre Watch
Find the right reference
For a Reverso, compare case length, thickness and the reversing mechanism, not just width. A simple single-face watch, Duoface travel watch and calendar model solve different needs. For Master models, decide which complication you will use before accepting the extra dial information and servicing complexity.
Compare condition and what is included
Check the Reverso carrier and locking action, engraving or refinishing on the reverse, and the correct clasp. For complicated models, ask for each function to be demonstrated. Distinguish vintage examples from modern reissues and collection names; an old-looking dial is not proof of an early production date.