Vacheron Constantin 2160/1

The caliber 2160/1 is an automatic movement by Vacheron Constantin, measuring 29.1 mm in diameter and 5.65 mm in height. It is equipped with 31 jewels, operates at a frequency of 18,000 vibrations per hour, and offers a power reserve of 80 hours through a perpetual rotor with automatic bidirectional winding. The movement features a small seconds display and a tourbillon complication, and it powers the Fiftysix tourbillon model with a 41 mm case.