Zenith caliber El Primero 4805 SK
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El Primero 4805 SK description
Skeletonized version of caliber 4805. Caliber 4805 features a tourbillon and a power reserve indicator. The movement has a power reserve of at least 50 hours. The chain is made of 575 components, while the movement as a whole has 807 parts.
Hours and minutes in the center
- 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