Rendered in grey titanium, the 44mm round case features a fixed bezel, screw-down crown, and a transparent case back that reveals the movement within. The blue skeleton dial opens a view onto the architecture beneath, accented by luminescent silver-tone hands and luminescent index hour markers, with a tachymeter scale running along the outer rim. Three sub-dials track 30-minute, 60-second, and small-seconds chronograph functions, while a power reserve indication rounds out the display.
At the heart of the watch sits the Zenith Calibre El Primero 9004 automatic movement, a 53-jewel manufacture calibre that oscillates at 36,000 vph and delivers approximately 50 hours of power reserve. A scratch-resistant sapphire crystal protects the dial, and the case offers water resistance to 100 metres / 330 feet. The blue rubber strap secures via a fold clasp for a confident fit on the wrist.
Part of the Defy El Primero 21 Ultrablue series and bearing the Swiss Made designation, this reference 97.9001.9004/81.R946 is presented with its original box and papers.
