Zenith El Primero El Primero Chronomaster Grande Date Full Open Stainless Steel / Alligator

Reference 03.2530.4047/78.C813

Zenith El Primero Chronomaster Grande Date Full Open Stainless Steel / Alligator

About this watch

The Zenith El Primero Chronomaster Grande Date Full Open is a masterpiece that combines artistry, precision, and functionality. This watch boasts a skeleton dial, showcasing the intricate workings of its legendary Zenith caliber El Primero 4047B movement. With a frequency of 36,000 vibrations per hour and a total of 332 components, this automatic movement is a marvel of engineering. The big date display and moonphase indicator add to its practicality and aesthetic appeal. Made from stainless steel with a sapphire crystal glass, this watch is durable, scratch-resistant, and water-resistant up to 50 meters. Its bold 46mm diameter and 15.60mm height make it a statement piece on any wrist. With an alligator leather strap, this watch exudes sophistication and craftsmanship.

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Key Features

Automatic movement with 36,000 vibrations per hour
Skeleton dial showcasing the El Primero caliber
Big date display for practicality
Moonphase indicator for astronomical features
Stainless steel case with sapphire crystal glass
Water-resistant up to 50 meters
46mm diameter and 15.60mm height

Specifications

Brand

Zenith

Family

El Primero

Model

El Primero Chronomaster Grande Date Full Open Stainless Steel / Alligator

Reference

03.2530.4047/78.C813

Movement Features

Hours, Minutes, Small Seconds
Date
Chronograph, Column wheel
Moonphase

Case

Stainless Steel 46mm

Dial Color

Skeleton

Crystal

Sapphire

Water Resistance

Current Listings

Zenith El Primero “Open Heart” — Ref. 03.0520.4021 — White Dial — Full Set / Hard-to-Find

Zenith - 03.0520.4021 · $3,190

This Zenith El Primero 'Open Heart' features a rare white dial and an iconic high-beat chronograph movement with an open-heart design, allowing you to see the escapement working.

Condition: Very Good
Diameter: ~42mm
Movement Frequency: 36,000 vph

Posted at

Feb 24, 2026, 8:12 PM

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Zenith 49.9010.9004/01.R947 El Primero 21 Chrona limited edition

Zenith - 49.9010.9004/01.R947 · $10,500

This limited edition Zenith Defy El Primero 21 Chroma watch is one of only 200 pieces, dated to 2022.

Condition: Mint condition
Limited edition: 1 of 200 pieces

Posted at

Feb 23, 2026, 11:52 AM

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Neo-Vintage Gem: Zenith El Primero Chronograph - 2025 Serviced w/Extras

Zenith - 20-0010.420 · $3,350

This Zenith El Primero Chronograph is a high-end timepiece with a rich history, featuring a gold-filled case and a Zenith green ostrich leather strap.

Movement: Zenith Cal.420
Case diameter: 38mm
Lug width: 20mm

Posted at

Feb 23, 2026, 9:00 AM

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INSANE Zenith El Primero Flyback in 18K Gold Grand Chronomaster XT Ref 35.1250.4009 COLLECTOR SET!

Zenith - 35.1250.4009 · $14,950

This is a Zenith El Primero Flyback Chronomaster in 18K gold, featuring an off-white dial with guilloche work and a 43mm case.

Condition: Mint, with wear on case
Case diameter: 43mm
Dial color: off-white
Movement type: automatic chronograph

Posted at

Feb 22, 2026, 8:36 PM

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PRICE DROP! Zenith Defy Extreme Diver El Primero Sunray Blue Dial FULL SET Ref 95.9601.3620/51.I301

Zenith - 95.9601.3620/51.I301 · $7,649

A modern iteration of the Zenith El Primero diver, reimagined in titanium with a funky design and beautiful blue sunray dial.

Condition: like new
Case size: 42.5mm
Movement: El Primero cal 3620 CS

Posted at

Feb 22, 2026, 2:32 PM

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2020 Zenith Defy El Primero 21 Skeleton Chronograph 49.9000.9004/78.R582 – Full Set – $7,300 Shipped

Zenith - 49.9000.9004/78.R582 · $7,300

A high-performance chronograph showcasing Zenith’s innovative 1/100th-of-a-second movement, housed in a lightweight titanium case.

Condition: Excellent
Case size: 44mm
Case material: Titanium
Movement type: Automatic chronograph (El Primero 21, 1/100th second)

Posted at

Feb 21, 2026, 12:07 PM

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Titanium Zenith Defy El Primero 21 Skeleton Box & Papers

Zenith - 95.9000.9004/78.R582 · $70,000

The Zenith Defy El Primero 21 Skeleton is housed in lightweight titanium, featuring an open-worked skeleton dial and the in-house El Primero 9004 movement.

Condition: Great Pre-Owned condition with light signs of wear
Material: lightweight titanium
Movement: in-house El Primero 9004

Posted at

Feb 20, 2026, 11:29 AM

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Brand New Zenith Chronomaster Original Reverse Panda El Primero Chronograph | 03.3200.3600/21.C903 | Full Zenith warranty | Price reduced

Zenith - 03.3200.3600/21.C903 · $7,050

This brand new Zenith Chronomaster Original Reverse Panda model has been discontinued by the manufacturer and comes with a full 2-year warranty.

Condition: Brand new, never used
Warranty: 2-year
Shipping method: USPS Registered Mail

Posted at

Feb 20, 2026, 8:04 AM

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Zenith 42mm El Primero Chronomaster Open Heart Stainless Steel Complete

Zenith - 03.2040.4061/69.C496 · $4,950

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

Posted at

Mar 31, 2025, 1:26 PM

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