Hublot Big Bang model with a skeletonized dial and an integrated metal bracelet. The style, specifically the integrated bracelet and the visible inner workings of the watch face, are characteristic of the Hublot Big Bang Integrated collection.
Key features identified:
Brand & Model: Hublot Big Bang
Dial: White/light dial, skeletonized design allowing view of the movement
Case & Bracelet: Appears to be a metal, possibly titanium or steel, integrated case and H-link bracelet
Movement: Features an open-heart design, likely an automatic (self-winding) movement