Contrast is the point of this Square Bang
The 821.OX.5180.RX brings together a King Gold square case, blue openworked dial and matching blue textured rubber strap. That combination gives the Square Bang a clear visual identity: warm around the edges, cool and mechanical at the center, with the strap carrying the blue through to the wrist.
The 42mm format keeps the case presence deliberate without turning the design into a generic round chronograph. Exposed bezel screws and the case side details reinforce the technical character, while the open calendar ring and layered blue registers give the front view its depth.
















