Zenith Expands the Defy Extreme Chroma Concept
Zenith continues to advance its high frequency chronograph line with two new additions to the Defy Extreme Chroma series. First introduced in 2022, the Chroma concept explored the expressive use of colour within the Defy Extreme range. The latest editions build upon that foundation while bringing new material combinations to the architecture of the collection.
The models retain the imposing, multifaceted 45 millimetre case that has become a hallmark of the Defy Extreme family. Unlike previous Chroma iterations that relied entirely on ceramic, the new versions blend ceramic with titanium. One model features a bead blasted titanium case with a darkened finish, resulting in a strong, technical presence on the wrist. The other pairs satin polished titanium with white ceramic components, including the bezel, the crown and the protective elements surrounding the chronograph pushers. The use of titanium helps reduce weight and improves comfort, while the ceramic elements increase contrast and define the watch’s sculptural profile.

Source: monochrome-watches.com
A Colour Driven Openworked Display
The openworked dial exposes the layered construction of the El Primero 9004 calibre. The movement bridges are treated with coloured PVD coatings, creating a gradient of tones that forms the core of the Chroma identity. Rhodium plated hour markers filled with a multicoloured lacquer complement this palette, while the rhodium plated hands coated with Super LumiNova maintain clarity within the complex geometry of the display.
The central chronograph seconds hand, rotating once every second, provides the focal point around which the rest of the dial is organised. The chronograph minute counter sits at three o’clock, the chronograph seconds counter at six o’clock and the small seconds display at nine o’clock. At twelve o’clock a dedicated power reserve indicator tracks the autonomy of the chronograph mechanism. Each counter is assigned a distinct colour, and the corresponding hand is matched to its register, reinforcing the visual structure of the composition.

Source: monochrome-watches.com
The El Primero 9004: Dual Escapements and One Hundredth Second Timing
The El Primero 9004 remains one of Zenith’s most advanced high frequency calibres. It incorporates a twin escapement architecture. One escapement operates at 5 hertz and regulates the timekeeping train, while the second runs at 50 hertz and governs the chronograph. This separation of regulating organs allows the chronograph to measure elapsed time to one hundredth of a second without compromising the stability of the base mechanism.
The calibre uses two independent barrels to provide consistent torque to the respective gear trains. The power reserve is approximately 50 hours when the chronograph is not in use. The movement’s dynamic structure is enhanced by its openworked execution, which gives purpose to the array of colours applied throughout the Chroma editions.

Source: monochrome-watches.com
Straps, Bracelets and Interchangeability
Both versions of the Defy Extreme Chroma are delivered with three options. Each model includes a rubber strap matched to the tone of the case, a full titanium bracelet and a black Velcro strap. Zenith’s quick change system allows the wearer to alternate between these options without tools, supporting a variety of aesthetic and functional preferences.

Source: monochrome-watches.com
Limited Editions and Pricing
Each of the new Chroma editions is limited to one hundred pieces. Indicative pricing is set at 19,900 Swiss francs, 21,600 euros or 20,600 dollars.