Hublot Big Bang Watch-301.SX.1170.RX

Case Diameter: 44 mm.

Case Material: Stainless steel (polished and satin-finished) for the case & bezel in many listings.

Movement: Automatic chronograph movement, specifically the Hublot calibre HUB4100 for this generation.

Power Reserve: ~42 hours.

Water Resistance: 100 m (10 bar) in official retail description.

Strap/Bracelet: Typically a rubber strap (black) with stainless steel deployment buckle in many versions.

Dial & Bezel: Many examples list a black dial with chrono sub-dials; the bezel comes with H-shaped screws typical of the Big Bang design