Fresh from releasing two Chronomaster Revival pieces in recent months, Zenith this week returns to its forward-focused Defy collection with the Defy 21 Ultraviolet, a 44mm dual-escapement chronograph with eye-catching purple bridges, rotor and strap.

For this model, the color will now vie for attention with the Defy 21’s mesmerizing one-rotation-per-second central chronograph hand.

When activated, sending the seconds hand spinning around the dial, the regally hued watch times events using Zenith’s 1/100th-of-a-second El Primero 21 chronograph caliber, beating at an ultra-high 50Hz (360,000 vph).

The watch of course continues to retain the time of day, thanks to its three-hand indicators, powered by the more traditional El Primero caliber, with the watch’s second escapement vibrating at 36,000 vph.

Zenith has colored the bridges violet on watch’s El Primero 9004 automatic movement.

Mostly open dial

As with most of the earlier Defy El Primero 21 models, the dial here is mostly open, clearing a direct view to many of the violet-colored, angular-cut bridges within. But unlike most of the earlier, heavily skeletonized designs, the new Defy 21 Ultraviolet’s solid chronograph subdials most directly recall the Defy 21 El Primero 21 Carl Cox released earlier this year.

Echoing that model’s specialized subdial designs, this new example features three grey chronograph registers and a grey flange ring. Other than the Carl Cox edition, the only similar example with solid chronograph registers was seen last year within the Defy 21 El Primero 50th Anniversary edition and was only available as part of a box set of three watches.

Sandblasted case

All the purple-treated bridges inside this Defy 21 Ultraviolet stand out particularly well against the matte sandblasted grey titanium case.

Equally compelling – at least to consumers who appreciate the novelty of a violet-tinted watch – is the woven textile-like purple insert of the watch’s accompanying black rubber strap.

I’ve always appreciated how difficult it can be for historically rich Swiss watch companies to embrace more modern  design, and with this newest watch Zenith presents an eye-catching, contemporary variation for its already impressive Defy 21 technology.  While the new Zenith Defy 21 Ultraviolet is primarily an exercise in color and finishing, the choice of color here is not for the meek, and it makes the result particularly successful. Price: $13,100.

Specifications: Zenith Defy 21 Ultraviolet (Reference: 97.9001.9004/80.R922)

Key points: Unique violet 1/100th of a second chronograph movement with seconds hand rotation once per second. One escapement for the watch (36,000 Vph – 5 Hz) and one escapement for the chronograph (360,000 Vph – 50 Hz). Linear power reserve indicator. TIME LAB Chronometer certified.

Movement: El Primero 9004 automatic with ultraviolet finishings, with 50-hours of power reserve.

Functions: 1/100th of a second chronograph functions. Chronograph power-reserve indication at 12 o’clock. Hours and minutes in the center. Small seconds at 9 o’clock, Central chronograph hand, 30-minute counter at 3 o’clock, 60-second counter at 6 o’clock

Case: 44mm micro-blasted titanium with 100 meters water resistance,

Dial: Special open dial with grey closed chronograph registers, rhodium-plated, faceted markers coated with SuperLumiNova. Hands are rhodium-plated, faceted and coated with Super-LumiNova

Bracelet: Violet fabric-effect strap with micro-blasted titanium double folding clasp

Price: $13,100.

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