Zenith El Primero El Primero Chronomaster Full Open 42 Stainless Steel / Rose Gold / Strap / Alligator
Reference 51.2081.400/78.C810
About this watch
Immerse yourself in the world of luxury watches with the Zenith El Primero Chronomaster Full Open 42 (model: 51.2081.400/78.C810). This stunning piece combines sophistication with state-of-the-art technology, making it a must-have for any watch enthusiast. The combination of stainless steel and rose gold gives it a luxurious yet sporty appearance. The open dial showcases the intricate workings of the movement, inviting you to appreciate the artistry within. At the heart of this timepiece is the Zenith caliber El Primero 400B movement, boasting a frequency of 36,000 vibrations per hour for an accuracy of 1/10th of a second. This automatic movement offers range of features that make it incredibly functional, including a convenient date display and chronograph function perfect for timing events with precision. The watch is paired with a luxurious alligator leather strap that enhances its elegance while ensuring a comfortable fit on the wrist. With a water resistance of up to 100 meters, you can confidently wear this beauty while swimming or during a rainy day without worrying about water damage. Its impressive 50-hour power reserve allows it to easily keep up with your busy lifestyle.
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Key Features
- Zenith caliber El Primero 400B movement
- 42mm stainless steel and rose gold case
- Sapphire crystal glass
- 100m water resistance
- Chronograph function with precision timing
- Convenient date display
- Luxurious alligator leather strap
Specifications
- Brand
- Zenith
- Family
- El Primero
- Model
- El Primero Chronomaster Full Open 42 Stainless Steel / Rose Gold / Strap / Alligator
- Reference
- 51.2081.400/78.C810
- Movement Features
-
- Hours, Minutes, Small Seconds
- Date
- Chronograph, Column wheel
- Case
- 42mm
- Dial Color
- Skeleton
- Crystal
- Sapphire
- Water Resistance
- 100
Current Listings
![[WTS] Zenith El Primero Chronograph](https://external-preview.redd.it/WonchzEBpWI5uSBJGUq8I2cQAOwrQihf6RgvIGkvmzI.jpeg?auto=webp&s=6c02b394a8c87bfde0871755b5190643476732cc)
Zenith El Primero Chronograph
- Movement: El Primero
![[WTS] Zenith El Primero Chronograph ref 01.0500.400](https://external-preview.redd.it/WonchzEBpWI5uSBJGUq8I2cQAOwrQihf6RgvIGkvmzI.jpeg?auto=webp&s=6c02b394a8c87bfde0871755b5190643476732cc)
Zenith El Primero Chronograph ref 01.0500.400
This listing features the Zenith El Primero Chronograph, a high-end watch with a legendary in-house movement, the El Primero cal. 400.
- Condition: Pre-owned, with minor cosmetic damage (flea bites)
- Movement Type: El Primero
- Movement Calibre: cal. 400
- Case Diameter: 38mm
![[WTS] 1970's Movado Zenith El Primero Mens Vintage Chronograph 01.0180.434 with Papers](https://external-preview.redd.it/EZwfwd6EhuDM1tKHU-MRBEvA6eWd5IPlomJLTcLok-g.jpeg?auto=webp&s=7ef1261d3a4e662f50720eac8334421098f70bae)
1970's Movado Zenith El Primero Mens Vintage Chronograph 01.0180.434 with Papers
Movado Zenith
- 01.0180.434
·
$3,950
A 1970s Movado Zenith El Primero Mens Vintage Chronograph featuring a stainless steel case, original silver dial, and automatic chronograph movement. It comes with papers, including a zenith manual and warranty card.
- Condition: Very nice preowned condition with light scratches and wear, minor crystal chips, patina on hands and dial
- Case material: Stainless Steel
- Case dimensions: 38mm diameter
- Bezel material: Stainless Steel

>>FINAL PRICE<< ZENITH DEFY EL PRIMERO LAND ROVER LIMITED EDITION
The Zenith Defy El Primero 21 Land Rover Limited Edition is a unique timepiece that features a bead blasted titanium case and a dark gray dial with orange accents. It boasts the new El Primero in-house movement, which measures time to 1/100 second, and comes with a range of accessories.
- Condition: MINT
- Case diameter: 44mm
- Movement: El Primero in-house movement
Zenith El Primero 03.2522.400
A Zenith El Primero Skeleton in 45mm size, functioning as it should with the exception of a slight reset issue.
- Condition: Pre-owned with some functional issues (chronograph resets slightly before 12)
- Case Size: 45mm diameter
- Full Kit: yes
![[WTS][US] Zenith Defy El Primero 21 Ultra Blue - 44mm - 97.9001.9004/81.R946 - Full Set](https://preview.redd.it/vlixprsa5w5f1.jpg?width=640&crop=smart&auto=webp&s=5fbd80af1604334caad273df41a30f4011ca6834)
[US] Zenith Defy El Primero 21 Ultra Blue - 44mm - 97.9001.9004/81.R946 - Full Set
The Zenith Defy El Primero 21 Ultra Blue is a 44mm watch that functions perfectly mechanically.
- Condition: Fantastic condition, no hairlines on clasp or case
- Case size: 44mm diameter
![[WTS] ZENITH El Primero Chronograph 18K Rose Gold 42mm Limited Edition Watch Ref. 18.2045.400 ALL Original!](https://preview.redd.it/wxygph7hej5f1.jpg?width=640&crop=smart&auto=webp&s=033abd385168349d72adca6aedabca432574a3a6)

Zenith 42mm El Primero Chronomaster Open Heart Stainless Steel Complete
A Zenith El Primero Chronomaster Open Heart chronograph watch, featuring a 42mm stainless steel case and in-house Caliber Zenith El Primero 4061 movement. The watch is dated October 2014 and has been recently serviced by Zenith.
- Condition: Mint Condition with light hairline scratches only
- Case size: 42mm diameter
- Water resistance: 30m depth rating

Zenith El Primero Synopsis Open Heart � BOX & PAPERS � 03.2170.4613/01.M2170
A Zenith El Primero Synopsis Open Heart watch with a 40-millimeter case diameter and gold-toned hands, featuring an open heart design and classic modern architecture.
- Condition: Excellent, little to no visible wear
- Case Diameter: 40mm
- Bracelet Length: 16.5 links
- Bracket Fit: up to 7.25 inches in circumference