Jaeger-LeCoultre is a key member of the pantheon of modern watchmakers, producing a healthy mix of easy to wear pieces, high complications, and gem-set watches, almost entirely in-house. This tiny perpetual calendar may be the first watch it ever made.
Antoine LeCoultre opened his eponymous watch manufacture in 1833 in the Swiss village of Le Sentier, itself founded by a member of the LeCoultre family in the 15th century. French watchmaker Edmond Jaeger didn't enter the picture until the turn of the 20th century, when he began licensing his designs for ultra-thin movements and for the legendary Atmos clock to LeCoultre. Eventually it made sense for the two to join forces, and Jaeger-LeCoultre was born in 1937.