Audemars Piguet 2123

Caliber 2123 is an automatic movement manufactured by Audemars Piguet. It is a date variant based on the JLC 920/2120, sharing the same base architecture as the in-house caliber 2120. As part of the 21xx family, it was not produced in-house by AP but derived from the established Jaeger-LeCoultre ebauche. The movement has been discontinued.