watches feature a square case with slightly rounded corners, an open-heart sapphire crystal dial that reveals the inner mechanism, and a textured black rubber strap with a quick-change system. Six H-shaped titanium screws secure the bezel.
Movement: They are powered by the in-house automatic Unico 2 (HUB1280) caliber, which includes a flyback chronograph function and a substantial 72-hour power reserve. The 60-minute counter and date display are located at the 3 o'clock position, while the small seconds subdial is at 9 o'clock.
Materials: The Square Bang collection is available in various materials, including titanium, ceramic, and Hublot's proprietary King Gold alloy, which has a warmer shade than traditional gold. The watches pictured appear to combine black accents with gold-toned cases.