Hublot Spirit of Big Bang Yellow Gold 42 MM - Black Rubber Strap - Sapphire Dial - 642.VX.0130.RX

The HUB4700 caliber is the successor to the famous El Primero caliber - the first chronograph with an integrated style automatic winding (1969), which was also the first mechanical chronograph equipped with a 5 Hz frequency (36’000 alt/h) allowing an accuracy of 1/10th of a second. In a perfect fusion between tradition and innovation, this entirely skeletonized movement is now equipped with silicon regulating element ensuring avant-garde performances, precision and reliability.
HUB4700 Self-winding Skeleton Chronograph Movement. Black Structured Lined Rubber Straps. 18K Yellow Gold and Black-plated Titanium Deployant Buckle Clasp.