Built around a 42mm carbon case, this Hublot Big Bang carries reference 645.QL.5117.RX and brings together lightweight construction and a skeleton dial that reveals the automatic movement beneath. The carbon bezel frames the open dial, giving the watch a distinctly technical character.
A screw-locked crown provides water resistance to 30 meters, while a rubber strap secured by a folding clasp keeps the watch comfortable on the wrist. The overall package reflects the bold, architecture-forward design philosophy that defines the Big Bang line.
The movement is automatic with no additional complications, keeping the focus squarely on the skeletonized display. This is a straightforward expression of the Big Bang in carbon, referenced as 645.QL.5117.RX.
