- Zenith has unveiled its LVMH Watch Week 2025 novelties, showing off two new watch releases
- Zenith celebrates its high-frequency El Primero automatic chronograph movement with a colourful Chronomaster Sport and a geometric, skeletonised Defy Skeleton Chronograph
While previous years have seen the Swiss luxury watch brand look to the past to inform the present, Zenith takes a decidedly more contemporary approach for LVMH Watch Week 2025. Rather than reworking heritage timepieces for the modern era, Zenith has focused its attention on its two flagship contemporary lines, the Chronomaster Sport and the Defy Skyline. One receives a dazzling gem set update in precious metal while the other shaves back the metal, with a skeletonised dial revealing the inner workings of the manufacture’s iconic El Primero movement.
Read on to discover all the Zenith novelties from LVMH Watch Week 2025.
Zenith Chronomaster Sport Rainbow
Zenith was evidently looking to Joseph and the Amazing Technicolor Dreamcoat for inspiration for its LVMH Watch Week 2025 releases, with the Swiss watch manufacture unveiling a positively dazzling version of its flagship contemporary chronograph watch. The Zenith Chronomaster Sport Rainbow coalesces the seemingly dichotomous concepts of sports watches and gem setting, proving the two can indeed coexist in harmony.


An enthusiastic follow up to last year’s boutique-exclusive rose gold Chronomaster Sport with baguette-cut diamonds, black spinels, and sapphires, the Chronomaster Sport Rainbow sees the 41mm case crafted from white gold and adorned with a ‘rainbow’ bezel with 50 colourful baguette-cut gemstones (comprising 10 diamonds and 40 sapphires). Beneath the glass, a black lacquered dial plays host to the manufacture’s signature overlapping tricolour chronograph subdials at 3, 6, and 9 o’clock, while baguette-cut sapphire hour markers echo those of the bezel. The timepiece is presented on a three-link white gold bracelet that combines brushed outer links with mirror-polished central links.
At the heart of the Chronomaster Sport Rainbow beats Zenith’s iconic El Primero movement, the world’s first automatic high-frequency chronograph calibre. Descended from the original calibre, the El Primero 3600 beats at (5 Hz) and is able to display 1/10th of a second in a legible format, thanks to the chronograph seconds hand which makes a complete dial rotation in 10 seconds. Visible through the exhibition caseback, the El Primero 3600 features bidirectional winding and guarantees a power reserve of 60 hours.
Price: $112,100USD
Model: Chronomaster Sport Rainbow (ref. 45.3104.3600/21.M3100)
Case size: 41mm
Movement: El Primero 3600 (automatic)
Water resistance: 10ATM
Functions: hours, minutes, small seconds, chronograph, 1/10th of a second chronograph, 60-minute counter, 60-second counter
Power reserve: 60 hours
Zenith Defy Skyline Chronograph Skeleton
Zenith has dabbled in both chronographs and skeletonisation with its Defy Skyline lineup, but previously it was an either-or situation. However, the new Zenith Defy Skyline Chronograph Skeleton changes that, with the Swiss manufacture introducing a decidedly modern version of its integrated bracelet sports watch which further emphasises the geometric design codes of the Defy Skyline and celebrates its high-frequency El Primero movement.




The Defy Skyline Chronograph Skeleton sees an octagonal 42mm stainless steel case with a dodecagonal bezel (that’s 12-facets) house an openworked dial in either black or blue. Much like the time-only Defy Skyline Skeleton, the Defy Skyline Chronograph Skeleton features geometric cut-outs that reference the luxury watch brand’s ‘double Z’ logo of the 1960s, with the inner workings of the movement glimpsed through these. They’re topped with a trio of openworked light grey subdials that display the small seconds at 9 o’clock, 60-minute counter at 6 o’clock and 60-second counter at 3 o’clock.
Like the Chronomaster Sport Rainbow above, the Defy Skyline Chronograph Skeleton is kept on time with the El Primero 3600 calibre. This in-house movement made its debut in 2019, on the 50th anniversary of the original El Primero, and is unique for its ability to display 1/10th of a second.
Price: $14,900CHF (both models)
Model: Skyline Chronograph Skeleton (ref. 03.9500.3600/79.I001 [Blue]; 03.9500.3600/78.I001 [Black])
Case size: 42mm
Movement: El Primero 3600 (automatic)
Water resistance: 10ATM
Functions: hours, minutes, small seconds, chronograph, 1/10th of a second chronograph, 60-minute counter, 60-second counter
Power reserve: 60 hours
Explore Zenith’s LVMH Watch Week 2025 novelties here and click here for more LVMH Watch Week coverage.
Words by T. Angel