Vacheron Constantin 1120

Caliber 1120 is an ultra-thin automatic movement manufactured by Vacheron Constantin. It measures just 2.45mm in thickness and contains 36 jewels with a bi-directional rotor. The movement is based on the Jaeger-LeCoultre 920 and carries Geneva Seal certification. Introduced in 1967, it remains in production and has underpinned the brand's complication collection since 2016.