Zenith Defy 21 Ultraviolet – Ref. 97.9001.9004/80.R922 – full kit minus warranty card, super clean.

You’re looking at Zenith’s wildest modern chronograph: a 44mm sandblasted titanium Defy case with an openworked dial that exposes the violet‑finished El Primero 9004 – a twin‑escapement, COSC‑certified movement where the time side beats at 5 Hz while the chronograph screams at 50 Hz for a true 1/100th‑of‑a‑second display.  

Hit the chrono and that central hand does a full lap of the dial every second while the 3 and 6 o’clock registers track 30 minutes and 60 seconds – it looks like a science‑fiction turbine spinning on your wrist.  This example is very slightly worn with only the lightest signs of careful use, and it comes with everything from Zenith including the original box, extra strap, tags and accessories – the only thing missing is the physical warranty card.  

You still get the full Ultraviolet experience: violet and black rubber straps with titanium folding clasp, 100 m water resistance, approximately 50‑hour power reserve, and that signature purple movement that makes this one of the most striking Defy 21 variants Zenith has ever released.