Movement: calibre BR-CAL.303. Automatic mechanical.Functions: hours, minutes and central seconds. Second time hand rapid-setting, independent from the hour hand. Date.Case: 41 mm in diameter. Satin-polished steel. Bi-directional bezel with 24-hour scale. Grey and black two-colour anodised aluminium disc. Screw-down crown. Sapphire case-back.Dial: black. Numerals and indices coated in white Superluminova. Metal skeletonized Superluminova-filled hour and minute hands.Crystal: ultra-curved sapphire with anti-reflective coating.Water-resistance: 100 metres.Straps: satin-polished steel strap.Buckle: folding for metal bracelet. satin-polished steel pin for rubber strap.