Defy Xtreme Open
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Caliber
El Primero 4021 SX
Automatic Chronograph movement with harmonic plate
13``` caliber. Diameter 30 mm. Height : 7.75 mm. 248 components
Chronograph bridge, balance & pallet cocks 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
Black Titanium case. Diameter: 46.5 mm
Black Titanium screw-in push-buttons with carbon fiber guilloché patterns
Black Titanium screw-in crown with specific protecting device
Graduated unidirectional rotating bezel in Black Titanium, with stainless steel
decorative screw-heads & satin-finished titanium cone-shaped indexes
Helium valve at 10 o'clock
Black Titanium screw-in case back with carbon fiber guilloché pattern
Water-resistance up to 1'000 meters
Dial
Multi-layered see-through structure composed of shock-resistant transparent Hesalite
glass, Carbon fiber layer and silver-coated dial flange
9-branched silvered propeller-shaped bridge revealing heart of 4021 SX El Primero
caliber
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 stainless steel.
Kevlar® lateral inserts and central links made of carbon fiber & composite alloys, with
brushed stainless steel triple folded clasp
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