Zenith El Primero El Primero Chronomaster Full Open 42 Stainless Steel / Alligator
Reference 03.2081.400/78.C813
About this watch
The Zenith - 03.2081.400/78.C813 El Primero Chronomaster Full Open 42 is a masterpiece that combines centuries of expertise and innovation with precision and craftsmanship. Its stainless steel case, measuring 42.00 mm in diameter and 12.75 mm in height, exudes refined elegance while showcasing the intricate workings of the El Primero movement through an open case back. The skeleton dial is a visual feast for the eyes, featuring stick and dot indexes and modern-style hands that maintain a clean aesthetic. At its core lies the Zenith caliber El Primero 400B movement, renowned for its precision and boasting a frequency of 36,000 vibrations per hour. This automatic movement offers a power reserve of 50 hours, allowing it to run smoothly without frequent winding. The chronograph feature is where this watch truly shines, with a column wheel mechanism providing smooth and reliable timing capabilities. Paired with an alligator leather strap that complements the polished stainless steel perfectly, this timepiece is not only luxurious but also practical, boasting a water resistance of 100 meters.
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Key Features
- Stainless Steel Case
- Sapphire Crystal Glass
- Automatic Movement (Zenith caliber El Primero 400B)
- Chronograph Feature with Column Wheel Mechanism
- Water Resistance: 100 Meters
- Alligator Leather Strap
- 50-Hour Power Reserve
Specifications
- Brand
- Zenith
- Family
- El Primero
- Model
- El Primero Chronomaster Full Open 42 Stainless Steel / Alligator
- Reference
- 03.2081.400/78.C813
- Movement Features
-
- Hours, Minutes, Small Seconds
- Date
- Chronograph, Column wheel
- Case
- Stainless Steel 42mm
- Dial Color
- Skeleton
- Crystal
- Sapphire
- Water Resistance
- 100
Current Listings
Zenith Class Sport El Primero Chronograph Black Dial Hand Wound 02.0500.420
This Zenith Class Sport El Primero Chronograph is a hand-wound mechanical watch with a black dial and stainless steel case.
- Condition: 95%
- Size: 39mm diameter
- Function: Chronograph ; date

Zenith Grande Class Open El Primero Chrono Power Reserve 03.0520.4021, Black B&P
This Zenith Grande Class Open El Primero Chronograph features an in-house movement, chronograph function, power reserve indicator, and is water resistant to 50m.
- Condition: Good condition, some wear on the strap and a small blemish on the sapphire crystal
- Movement: Automatic, in-house Zenith 4021H
- Base movement: Zenith El Primero 400
- Alternations per hour: 36,000

ZENITH CHRONOMASTER SPORT El PRIMERO YOSHIDA GREEN DIAL LIMITED EDITION 2024
The Zenith Chronomaster Sport Yoshida 'Hulk Edition' features a stainless steel case with a green ceramic bezel and dial, powered by the El Primero Caliber 3600.
- Condition: Mint, Unpolished Condition
- Limited edition: 1 of 244 pieces
- Case material: stainless steel
- Bracelet material: stainless steel

ZENITH DEFY EXRTREME DIVER EL PRIMERO 5 YEAR Warranty
The Zenith Defy El Primero Extreme Diver is a high-end diver's watch featuring a black dial with orange highlights, ceramic bezel, and 42mm diameter. It has a water resistance of 600m and comes with multiple straps and quick-change feature.
- Condition: LNIB (Like New in Box)
- Case material: Titanium
- Water resistance: 600m
- Movement: In-house El Primero movement

>>REDUCED FURTHER<< ZENITH DEFY EL PRIMERO LAND ROVER Limited Edition
This Zenith Defy El Primero 21 Land Rover Limited Edition is a unique timepiece featuring a bead blasted titanium case, dark gray dial with orange accents, and the in-house El Primero movement. It's one of only 250 pieces produced and comes with a rubber strap, original fabric strap, and various accessories.
- Condition: MINT
- Case diameter: 44mm
- Movement type: El Primero
- Limited edition: 1/250

2006 Zenith El Primero Port Royal V Ref: 03.0550.4021/21.R512 with Box and Papers
The 2006 Zenith El Primero Port Royal V is a chronograph watch featuring an excellent black dial with Arabic numerals and power reserve display, housed in a 35mm case with screw down display caseback.
- Condition: Excellent
- Case size: 35mm diameter
- Bracelet type: black rubber strap
- Clasp type: double fold clasp

Zenith El Primero Chronomaster Original Panda Ref. 03.3200.3600.21.c903
This is a Zenith El Primero Chronomaster Original Panda watch, which comes with several accessories and a warranty card.
- Accessories: boxes, books, extra strap, warranty card
Stunning Zenith Defy El Primero 21 Ultraviolet 44MM (97.9001.9004/80.R922)
This watch is gorgeous in person and wears so nicely.
- Condition: Perfect condition
- Case size: 44MM
- Box and papers included: true

ZENITH DEFY EL PRIMERO LAND ROVER Limited Edition
The Zenith Defy El Primero 21 Land Rover Limited Edition features a dark gray dial with orange accents and an in-house El Primero movement.
- Condition: MINT
- Case material: bead blasted titanium
- Diameter: 44mm
- Movement: in house El Primero