The Vacheron Constantin 43039 "Chambellan" was launched in 1998 to celebrate the 30th anniversary of the 1120 movement,

The core of this machine comes from the legendary JLC 920, which was first developed by Jaeger LeCoultre in 1967 and adopted by Audemars Piguet, Patek Philippe, and Vacheron Constantin.

It served as the first movement for the Royal Oak and Nautilus. Vacheron Constantin also uses it in this ultra-thin watch design!

At that time, due to limited production capacity, only 200 pieces were produced, including 120 pieces of gold and 80 pieces of platinum. All have the Geneva mark and a diameter of 36 millimeters.