El Primero 4805

Caliber 4805 is a movement by Zenith. It features a tourbillon and a power reserve indicator. The movement has a power reserve of at least 50 hours. Hours and minutes in the centre Tourbillon: - The carriage is positioned at 6 o'clock - The carriage makes one turn per minute Power-reserve indication between 4 and 5 o'clock Fusée-chain transmission connected to the barrel