BR-CAL.313. Automatic mechanical. 'X'-shaped upper bridge. 56 jewels, 28,800 vph. Skeleton chronograph.
Hours, minutes, small seconds at 3 o'clock. Skeletonised date at 6 o'clock. Chronograph: 30-minute counter at 9 o'clock, central chronograph seconds. Tachymeter scale on the flange.
45 mm in width. PVD titanium and ceramic with rubber inserts. Bi-directional rotating steel bezel ring with time marker. Rocker pushers. Case-back with opening in tinted sapphire crystal, centred on the balance.
Skeleton. Metal applique Super-LumiNova®-filled numerals. Metal skeleton Super-LumiNova®-filled hour and minute hands.
Sapphire with anti-reflective coating.
100 meters.
Perforated black rubber.
Pin. Steel with black rubber overmoulding.