41 mm CuAI7Si2 bronze case, sapphire back, screw-down crown, CuAI7Si2 bronze bezel with scale and anodised aluminium insert and tachymeter, ultra-curved sapphire crystal with anti-reflective coating, black dial with metal applique hour markers, calibre BR-CAL.301 automatic movement with hours, minutes, small seconds at 3 o'clock, date, and chronograph, black calfskin leather strap, satin-polished CuAI7Si2 bronze folding buckle. Water resistant to 100 metres.
41 mm satin-polished steel case, sapphire back, screw-down crown, steel bezel with tachymeter scale, ultra-curved sapphire crystal with anti-reflective coating, gilt dial with metal applique hour markers, calibre BR-CAL.301 automatic movement with hours, minutes, small seconds at 3 o'clock, date, and chronograph, brown calfskin strap, satin-polished steel folding buckle. Water resistant to 100 metres.