DEFY EXTREME | 45 mm | AutomaticZENITH DEFY Extreme 1 100th of a second high frequency chronograph watch in a 45mm microblasted titanium case and sapphire dial. The DEFY Extreme 1 100th of a second chronograph is made in light yet robust titanium with an entirely matte finish. The tinted sapphire dial with applied counters reveals the El Primero 21 automatic movement with two escapements beating at 50Hz and 5Hz. The DEFY Extreme watch comes with a titanium strap as well as a rubber