Jaeger-LeCoultre 876-440B

The Jaeger-LeCoultre caliber 876-440B is a hand-wound movement featuring a perpetual calendar complication. It operates at 28,800 vibrations per hour and contains 37 jewels. The movement measures 6.6 mm in height and delivers an 8-day power reserve from two barrels. This caliber represents Jaeger-LeCoultre's manufacture of complete calendar mechanisms in a compact format suitable for dress watches.