SPHERE: Black sphere in skeleton. Luminescent and rhodium-plated indexes.BOX: Diameter: 45 mm. Sealing: 100 meters. Satin and polished steel case body. Fixed bezel in polished steel and ceramic. Second time zone 0 - 24 h. Sapphire crystal with anti-reflective treatment on both sides. Sapphire caseback background.MOVEMENT: 168 components. Frequency: 28,800 Alternations per hour (4 HZ). Diameter: 31.0 mm. Total height: 6.95 mm. 33 jewels Power reserve: 75 hours. Display characteristics: Hours; minutes; date; 60 second chronograph second hand; 12-dbo.HOUR chronograph counter at 9; 30-minute chronograph counter at 3; permanent seconds at 6 o´clock. Mechanical characteristics: Pillar wheel; circular oscillating weight; vertical clutch system; a single barrel.STRAP: Satin and polished steel bracelet.