Zenith El Primero El Primero Chronomaster Full Open 38 Stainless Steel / Rose Gold / Alligator

Reference 51.2151.400/78.C810

Zenith El Primero Chronomaster Full Open 38 Stainless Steel / Rose Gold / Alligator

About this watch

The Zenith El Primero Chronomaster Full Open 38 is a masterpiece that combines elegance with exceptional functionality. At its core lies the Zenith caliber El Primero 400, an automatic movement boasting 36,000 vibrations per hour and 278 components. The round case measures 42.00 mm in diameter, protected by sapphire crystal, showcasing intricate details of the skeleton dial. Comfort is key, with an alligator leather strap and lug width of 21.00 mm. With a water resistance rating of 100 meters, this watch can handle everyday wear. Its versatility allows it to seamlessly transition from formal to casual settings, making it a worthy addition to any collection.

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Key Features

Automatic movement
36,000 vibrations per hour
278 components and 31 jewels
Sapphire crystal protection
Water resistance up to 100 meters
Skeleton dial design
Alligator leather strap

Specifications

Brand

Zenith

Family

El Primero

Model

El Primero Chronomaster Full Open 38 Stainless Steel / Rose Gold / Alligator

Reference

51.2151.400/78.C810

Movement Features

Hours, Minutes, Small Seconds
Date
Chronograph, Column wheel

Case

42mm

Dial Color

Skeleton

Crystal

Sapphire

Water Resistance

100

Current Listings

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

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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

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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

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Zenith Chronomaster. El Primero. Power Reserve. Open Heart. OEM Strap, OEM Deployant Clasp...

Zenith - Chronomaster El Primero Power Reserve Open Heart · $3,400

A Zenith Chronomaster with El Primero movement and Power Reserve, featuring an Open Heart design.

Posted at

May 8, 2026, 5:24 PM

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[US] Zenith El Primero Chronomaster Sport - White Dial - 41mm - 03.3100.3600/69.M3100 - Full Set

Zenith - 03.3100.3600/69.M3100 · $7,525

Up for sale is a Zenith El Primero Chronomaster Sport - White Dial - 41mm, which functions perfectly mechanically without issue.

Condition: Fantastic condition with few hairlines on clasp, case, and bracelet
Case size: 41mm diameter
Box: full set with box, travel case, user manual, card holder & warranty card

Posted at

May 7, 2026, 6:40 AM

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Zenith El Primero New Vintage 1969 Limited Edition 40th Anniversary 96 1969 469/ 77 C683 ♦️Lightly Used 2014♦️

Zenith - 96 1969 469/77 C683 · $6,230

This is a Zenith El Primero New Vintage 1969 Limited Edition 40th Anniversary watch, produced in 2014. It comes with the full set of box and papers.

Condition: Lightly Used
Year: 2014
Box And Papers: includes full set
Shipping Cost: 150

Posted at

May 6, 2026, 5:36 AM

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Zenith “Open Heart” - El Primero Movement - Sexy AF

Zenith - 03.0520.4021 · $2,350

A rare white dial Zenith El Primero 'Open Heart' automatic chronograph watch featuring an open-heart design and high-beat movement.

Condition: Very Good
Dial color: white
Case size: 42mm diameter
Movement: El Primero high-beat automatic chronograph (36,000 vph)

Posted at

May 5, 2026, 8:22 PM

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Zenith El Primero Chronomaster Poker Chip 97.G383.400/38.C881 ♦️Like New 2022♦️

Zenith - 97.G383.400/38.C881 · $8,400

A Zenith El Primero Chronomaster Poker Chip from 2022, in excellent condition with box and papers.

Condition: Like New
Year Of Production: 2022
Case Condition: Like New
Includes Accessories: Full set (box & papers)

Posted at

May 5, 2026, 2:26 AM

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OG Zenith El Primero Flyback Chronograph - For The French Military - Ref 02.0470.405/25 - FULL COLLECTOR SET

Zenith - 02.0470.405/25 · $4,250

This is an original Zenith El Primero Flyback Chronograph designed for French military aviation, featuring a matte black dial and a 40MM stainless case.

Condition: Very good condition, with wear throughout
Dial: matte black dial with clean chronograph layout and lume
Case: 40MM diameter stainless steel case in unpolished condition
Bracelet: original stainless Zenith bracelet with double butterfly clasp, fits up to 7 inches

Posted at

May 4, 2026, 8:41 PM

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