Zenith DEFY Skyline Chronograph SS Black Skeleton Dial 2025

Introduced for LVMH Watch Week in January 2025, the Zenith DEFY Skyline Chronograph Skeleton ref. 03.9500.3600/78.I001 takes the brand's integrated-bracelet sports watch in a more technical direction. The 42mm stainless steel case keeps the familiar DEFY traits: a sharply faceted profile, twelve-sided bezel, and angular chronograph pushers that echo Zenith designs from the late 1960s. Its black openworked dial exposes the movement's structure without giving up the clear, high-contrast layout that defines the Skyline line, with contrasting registers and luminous faceted hour markers. Inside is the in-house El Primero 3600SK, a skeletonized automatic high-frequency chronograph that runs at 5 Hz and displays true 1/10th of a second timing through a central hand that circles the dial every ten seconds. Zenith also fits the caliber with a silicon escape wheel and lever, a practical modern touch in keeping with the watch's overall specification. The integrated stainless steel bracelet gives the watch the clean, continuous profile collectors expect from the DEFY family. For buyers looking for a current-production Zenith with El Primero lineage, a skeletonized dial, and a genuinely useful high-frequency chronograph, this is one of the stronger DEFY releases from the period. Like New with Zenith box, additional Zenith strap and papers dated 2025.