Zenith Defy Xtreme Open Stealth

MOVEMENT: Caliber El Primero 4021 SX. Automatic Chronograph movement with harmonic plate. 13``` caliber. Diameter 30 mm. Height : 7.75 mm. 248 components. Balance, chronograph & pallet bridges in shock-absorbing Zenithium Z+. Incabloc® anti-shock device. 36’000 vibrations per hour. Power reserve over 50 hours. 39 jewels. Measures short time intervals to a 10th of a second. Automatic winding in both directions. Central rotor on ball bearings. Heavy Metal oscillating weight with carbon fiber inserts. FUNCTIONS: Hours and minutes in the center. Small seconds-hand at 9 o’clock with a 3-branched hand. Power reserve indicator from hour axis. Central seconds-hand. 30-minute counter at 3 o’clock. CASE: Titanium case. Diameter: 46.5 mm. Titanium screw-in push-buttons with carbon fiber guilloché patterns. Titanium screw-in crown with specific protecting device. Graduated unidirectional rotating bezel & indexes in Titanium. Helium valve at 10 o’clock. Titanium screw-in case back. Water-resistance up to 1’000 meters. DIAL: Multi-layered see-through structure composed of shock-resistant transparent Hesalite glass, Black or grey carbon fiber layer and nitrocellulosed nickel-coated dial plate. 9-branched Open “helical” bridge in solid Gold. CRYSTAL: Sapphire glass, 3.8 mm thick, with anti-reflective coating on both sides. HANDS: Rhodium-plated luminous hands with red Superluminova inserts. Hour & minute “skeleton” rhodium hands. BRACELET: High-temperature resistant bracelet in brushed white or black titanium. Central links in composite materials, with carbon fiber for the black version. Lateral inserts in composite materials (white version) or Kevlar (black version). BUCKLE: Brushed titanium triple folded clasp

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