Art Deco World has dated this piece to the 1930s.

History
Jaeger-LeCoultre (French pronunciation is a Swiss luxury watch and clock manufacturer based in Le Sentier, Switzerland, that dates back to the first half of the 19th century, founded by Antoine LeCoultre in 1833.

The brand has hundreds of inventions and over a thousand calibres (movements) to its name, including the world’s smallest calibre, one of the world’s most complicated wristwatches and a timepiece of near-perpetual movement.
Art Deco World has dated this piece to the 1930s.
Specialists in fine quality art deco originals
You can view the stock and full dealer information on the Art Deco World Profile Page