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

Reference 03.2081.400/78.M2040

Zenith El Primero Chronomaster Full Open 42 Stainless Steel / Bracelet

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

Neo Vintage French Military Zenith El Primero Flyback Chronograph Ref 02.0470.405/25 FULL COLLECTOR SET

Zenith - 02.0470.405/25 · $4,250

This is a unique Neo Vintage French Military Zenith El Primero Flyback Chronograph, featuring a matte black dial and stainless case. The watch comes in a collector's box and papers set, including an original serialized hang tag.

Condition: really nice condition, with wear throughout
Case size: 40mm diameter
Bracelet length: fits up to app 7 inches
Movement type: automatic chronograph with quickset date winding

Posted at

May 11, 2026, 8:57 PM

Active

View listing on r/WatchExchange

Zenith Defy Skyline Chrono Silver - El Primero - Full Set 2024 - Integrated Bracelet & Green Strap w/ Deployant - $7,750

Zenith - 03.9500.3600/01.I001 · $7,750

This is a Zenith Defy Skyline Chronograph, featuring the El Primero 3600 movement that beats at 36,000 vph and drives a 1/10th-second chronograph hand. The watch has a 42mm stainless steel case and a silver dial with a 'Starry Sky' pattern.

Condition: Excellent
Movement: El Primero 3600, automatic chronograph
Frequency: 36,000 vph (5Hz)
Power reserve: 60 hours

Posted at

May 11, 2026, 11:46 AM

Active

View listing on r/WatchExchange

Ultra Rare Zenith El Primero Tourbillon Chronograph in 18K White Gold - Just 50 Made - Collector Set

Zenith - 65.1260.4005/21.C505 · $20,850

The Zenith El Primero is a legendary chronograph featuring an incredible tourbillon and limited to just 50 pieces. The watch is housed in 18k white gold and features a beautiful black dial highlighting the tourbillon.

Condition: Really clean condition, minimal wear throughout
Case diameter: 45mm
Movement: El Primero automatic chronograph cal 4005
Strap material: Zenith black leather strap

Posted at

May 10, 2026, 11:09 PM

Active

View listing on r/WatchExchange

Zenith Tipo CP-2 Chronograph 03.2240.4069, Underrated El Primero Beast (641/1000)

Zenith - 03.2240.4069 · $4,150

Inspired by original Cairelli-issued military chronographs, this Zenith Tipo CP-2 Chronograph features a strong vintage tool watch character with a matte black dial and bold lume markers.

Condition: great, with light signs of normal wear
Case size: 43mm diameter
Movement: Zenith El Primero automatic chronograph (Cal. 4069)
Water resistance: 100m depth rating

Posted at

May 8, 2026, 8:40 PM

Active

View listing on r/WatchExchange