Ethos Watch Boutiques

Zenith Chronomaster Open

03.3300.3604/21.M3300

MRP
₹ 9,90,000

*Inclusive of all taxes

EMI from ₹ 88425

2-year warranty, extendable to 5 years. Register here

Speak with an Expert

+91 87250 28887 +91 87250 28882

Free Home Delivery Across India

The Zenith Chronomaster Open showcases the heartbeat of the legendary El Primero movement through a partially open dial. Encased in a 39.5mm stainless steel case, this timepiece features a matte black dial with Zenith’s signature tri-colour chronograph counters and a transparent running seconds counter at nine o’clock, revealing the escapement in motion. The red central chronograph hand and precise 1/10th of a second scale emphasize the watch’s high-frequency performance. Inside, the El Primero 3604 automatic movement powers the chronograph with remarkable precision, offering a 60-hour power reserve. Completing the design is an integrated stainless steel bracelet, adding a refined yet sporty touch. With its masterful balance of openwork mechanics and timeless aesthetics, the Chronomaster Open stands as a testament to Zenith’s watchmaking excellence.

Full Specification

  • Brand Zenith
    CollectionChronomaster
    SeriesOpen
    Model No03.3300.3604/21.M3300
  • Movement
    Features Chronograph, Open Balance Wheel, Small Seconds, 1/10th Seconds
    Movement Automatic
    Calibre El Primero 3604
    Case
    Case Size 39.5 mm
    Case Thickness 13.60 mm
    Case Shape Round
    Case Material Steel
    Case Back See-through Case Back
    Glass Material Sapphire Crystal
    Dial
    Luminosity On Hands, Hour Markers
    Dial Colour Black
    Hands Baton
    Indexes Baton
    Strap
    Strap Material Steel
    Strap Colour Silver
    Clasp Type Folding Clasp
    Buckle/Clasp Material Steel
    Other
    EAN 7613061031543
    Gender Unisex
    Water Resistance (M) 100
    Warranty Period 2-year warranty, extendable to 5 years. Register here
    Country of Origin Switzerland

Collection Video Discover the Chronomaster Collection

About the Zenith Chronomaster Collection

Zenith introduced the Chronomaster collection in 1994, designed after the timepiece that first housed the legendary El Primero calibre, the world’s first automatic high-frequency chronograph calibre, in 1969. Since then, the collection has become a mainstay of the brand's portfolio and the best platform to demonstrate the exceptional performance of the El Primero calibres.

Bold Aesthetics

The Zenith Chronomaster is a celebrated collection of high-precision chronograph watches with a striking design, characterised by a variety of case types and sizes. From the vintage-inspired 37mm tonneau case to the more contemporary 41mm cases seen in models like the Chronomaster Sport, Zenith has consistently adapted Chronomaster's design to suit modern tastes. These watches are most famously equipped with tricoloured chronograph sub-dials adorned in blue, grey, silver, and more hues. These dials add a vibrant, recognisable element to the collection.

Iterations

The Zenith Chronomaster collection masterfully integrates historical elegance with cutting-edge technology. The Chronomaster Original pays homage to the 1969 A386, featuring the El Primero 3600 movement, which offers a 60-hour power reserve and enhanced accuracy with its stop-seconds mechanism. This model captures the essence of its predecessor with distinctive design elements. The Chronomaster Revival series revisits classic designs while incorporating modern advancements. The Chronomaster El Primero Open stands out with its transparent aperture that reveals the balance wheel, which includes a silicon escapement for greater reliability and a 50-hour power reserve. The Chronomaster El Primero Tourbillon combines an elegant tourbillon complication with the El Primero movement, showcasing high horological craftsmanship and precision. The Chronomaster collection is a nod to Zenith's storied past and innovative future. With classic design and modern technology, these timepieces offer collectors and enthusiasts a perfect timeless style and advanced performance.

Zenith Chronomaster

ABOUT THE MOVEMENT

The Zenith El Primero 3604 is a high-frequency automatic chronograph movement, operating at 36,000 vibrations per hour (5Hz). A modified version of the El Primero 3600, it features a column-wheel mechanism for smoother chronograph operation and is capable of measuring 1/10th of a second with a central chronograph hand that completes a full rotation every 10 seconds. The movement has a 60-hour power reserve and includes hours, minutes, small seconds, and stop-seconds functionality. Additionally, the El Primero 3604 is known for its open base plate and bridges, allowing a clear view of the silicon escapement. It powers models such as the Chronomaster Open series. 
 

El Primero 3604

    • Brand Zenith
    • Reference El Primero 3604
    • Movement Automatic
    • Display Analog
    • Power Reserve Approx. 60 hours
    • Jewels 35
    • Frequency 36000 bph

Similar Watches

Better Together

Special Offers

Trending Articles from The Watch Guide

View all