For Him
ZENITH Chronomaster Sport Rainbow, Luxury Redefined
Rim Nsouli
5-February-2025

The heir of a long legacy of ZENITH chronographs, the Chronomaster Sport brings together the brand’s unique expertise in high frequency timekeeping with a distinctive sporting style. If sport watches and precious gemstones may not sound like a natural pairing, ZENITH has managed to combine the functionality of its flagship chronograph with exquisite artistry, adorning it with a bevy of colourful gemstones.
Crafted from 18k white gold, this luxurious and colourful take on the Chronomaster Sport follows the version in rose gold set with baguette-cut diamonds, spinels and sapphires that was presented last year. g. With it, the perfectly balanced 41mm Chronomaster Sport case is crowned by a bezel set in 'Rainbow' style with 50 baguette-cut gemstones. To enhance its style while preserving its functionality, a bright and colourful palette of 40 sapphires is punctuated with 10 baguette-cut diamonds indicating the 10 seconds.

Underneath the sapphire crystal, the lacquered dial features signature 3-6-9 tricolour overlapping counters. The rainbow bezel is echoed with sapphire markers. These are set on a deep black surface creating a perfect backdrop for them to shine. To enhance legibility in the dark, the faceted hour and minute hands are fitted with Super Luminova.
The result of 55 years of perfecting the El Primero, the world’s first automatic high-frequency chronograph calibre, the Chronomaster Sport line is powered by an exceptional version of this legendary movement, the El Primero 3600. Featuring bi- directional winding, its automatic mechanism delivers a power reserve of 60 hours. Its superb architecture is visible through the sapphire display case back, revealing a blue column wheel and an open rotor with the five-pointed star Zenith.
Exuding dazzling presence on the wrist, the ZENITH Chronomaster Sport Rainbow comes on an integrated brushed and polished 3-link white gold bracelet. It is secured by a safety double folding clasp.
The Chronomaster Sport Rainbow is available exclusively from ZENITH’s physical and online boutiques worldwide.
From Zenith, discover the Special Edition Defy Skyline Tourbillon.

ZENITH: TIME TO REACH YOUR STAR.
ZENITH exists to inspire individuals to pursue their dreams and make them come true – against all odds. Since its establishment in 1865, ZENITH became the first vertically integrated Swiss watch manufacture, and its watches have accompanied extraordinary figures that dreamt big and strived to achieve the impossible – from Louis Blériot’s history- making flight across the English Channel to Felix Baumgartner’s record-setting stratospheric free-fall jump. ZENITH is also highlighting visionary and trailblazing women by celebrating their accomplishments and creating the DREAMHERS platform where women share their experiences and inspire others to fulfil their dreams.
With innovation as its guiding star, ZENITH exclusively features in-house developed and manufactured movements in all its watches. Since the creation of the El Primero in 1969, the world’s first automatic chronograph calibre, ZENITH has gone on to master high- frequency precision and offers time measurements in fractions of a second, including 1/10th of a second in the Chronomaster collection and 1/100th of a second in the DEFY collection. Because innovation is synonymous with responsibility, the ZENITH HORIZ-ON initiative affirms the brand's commitments to inclusion & diversity, sustainability, and employee wellbeing. ZENITH has been shaping the future of Swiss watchmaking since 1865, accompanying those who dare to challenge themselves and reach new heights. The time to reach your star is now.
CHRONOMASTER SPORT RAINBOW Reference: 45.3104.3600/21.M3100
Key points: Full gem-set rainbow bezel with sapphires. Black dial with rainbow sapphire indices. Automatic El Primero column-wheel chronograph able to measure and display 1/10th of a second. Power reserve of 60 hours. Date indication at 4:30. Stop-second mechanism.
Movement: El Primero 3600 automatic
Frequency: 36,000 VpH (5 Hz)
Power reserve: approx. 60 hours
Functions: 1/10th of a second chronograph functions. Hours and minutes in the center, small seconds at 9 o'clock.
- Central chronograph hand that makes one turn in 10 seconds
- 60-minute counter at 6 o'clock, 60-second counter at 3 o'clock. Finishes: Star-shaped oscillating weight with satined finishings Price: 112 100 USD
Material: 18-carat white gold with rainbow baguettes sapphires bezel
Water resistance: 10 ATM
Case: 41mm
Dial: Black-lacquered dial with three different-coloured counters
Hour markers: Rainbow sapphire indices
Hands: Rhodium-plated, faceted and coated with SuperLuminova SLN C1
Bracelet & Buckle: White gold bracelet with a double folding clasp
Gem-setting: Total of 5.36 cts
Bezel : 1 ct of diamonds (10 baguettes)
3.9 cts of sapphires (40 baguettes)
Dial : 0.46 cts of sapphires (12 baguettes)