Zenith El Primero El Primero Chronomaster Full Open 42 Stainless Steel / Bracelet

Reference 03.2081.400/78.M2040

About this watch

The Zenith El Primero Chronomaster Full Open 42 is a stunning piece that not only elevates your style but also brings a world of horological excellence to your wrist. With its striking skeleton dial and intricate movement beneath, this watch is a masterpiece of classic design and modern technology. The case is crafted from durable stainless steel, ensuring longevity and resilience against daily wear, while the sapphire crystal glass adds an extra layer of protection. The open case back allows you to admire the mechanical marvel at work, further enhancing the overall experience. With its automatic movement boasting a frequency of 36,000 vibrations per hour, this watch is designed for those who appreciate the finer details of timekeeping. Whether you're timing laps on the track or just keeping tabs on your daily routine, this watch has got you covered. The El Primero Chronomaster boasts a water resistance of 100 meters and comes with a stainless steel bracelet that perfectly complements its overall design.
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Key Features

  • 42mm diameter case
  • 12.75mm height
  • Stainless steel construction
  • Sapphire crystal glass
  • Automatic movement with 36,000 vibrations per hour
  • Chronograph function with column wheel
  • 50-hour power reserve

Specifications

Brand
Zenith
Family
El Primero
Model
El Primero Chronomaster Full Open 42 Stainless Steel / Bracelet
Reference
03.2081.400/78.M2040
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph, Column wheel
Case
Stainless Steel 42mm
Dial Color
Skeleton
Crystal
Sapphire
Water Resistance
100

Current Listings

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  • Condition: like new
  • Case size: 42.5mm
  • Movement: El Primero cal 3620 CS
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  • Condition: Excellent
  • Case size: 44mm
  • Case material: Titanium
  • Movement type: Automatic chronograph (El Primero 21, 1/100th second)
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Feb 21, 2026, 12:07 PM
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  • Condition: Great Pre-Owned condition with light signs of wear
  • Material: lightweight titanium
  • Movement: in-house El Primero 9004
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Feb 20, 2026, 11:29 AM
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  • Condition: Brand new, never used
  • Warranty: 2-year
  • Shipping method: USPS Registered Mail
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  • Condition: Mint Condition with light hairline scratches only
  • Case size: 42mm diameter
  • Water resistance: 30m depth rating
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Mar 31, 2025, 1:26 PM
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  • Condition: Excellent, little to no visible wear
  • Case Diameter: 40mm
  • Bracelet Length: 16.5 links
  • Bracket Fit: up to 7.25 inches in circumference
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Mar 27, 2025, 2:21 PM
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  • Condition: Excellent
  • Case size: 38mm diameter
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A Zenith El Primero Chronomaster Open Heart chronograph watch with a 42mm stainless steel case, featuring a Caliber Zenith El Primero 4061 movement and a date of manufacture in October 2014.

  • Condition: Mint Condition
  • Case diameter: 42mm
  • Movement frequency: 36,000 VPH
Posted at
Mar 25, 2025, 12:45 PM
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  • Condition: Mint Condition with light hairline scratches
  • Case diameter: 42mm
  • Movement frequency: 36,000 VPH
  • Power reserve: 50 hour PR
Posted at
Mar 4, 2025, 12:09 PM
Active