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

Reference 03.2153.400/78.C813

Zenith El Primero Chronomaster Full Open 38 Stainless Steel / Alligator

About this watch

The Zenith El Primero Chronomaster Full Open 38 is a masterpiece that combines elegance with cutting-edge technology. Its skeletonized dial reveals the intricate workings of the movement, showcasing the craftsmanship and adding a unique flair. The watch is encased in stainless steel, known for its durability and resistance to tarnishing, with a 42 mm diameter striking a balance between boldness and wearability. The El Primero 400 movement boasts a frequency of 36,000 vibrations per hour (VpH), offering unparalleled accuracy and precision. With a power reserve of 50 hours, the watch is powered by an automatic marvel that adds practicality to its elegance. A luxurious alligator leather strap complements the timepiece, enhancing its elegance and providing comfort throughout the day.

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Key Features

Skeletonized dial with 278 movement components
Stainless steel case with 42 mm diameter and 12.75 mm height
Sapphire glass for scratch resistance
100 meters water resistance for daily wear
El Primero 400 automatic movement with 50 hour power reserve
Chronograph function for measuring elapsed time
Luxurious alligator leather strap for comfort and style

Specifications

Brand

Zenith

Family

El Primero

Model

El Primero Chronomaster Full Open 38 Stainless Steel / Alligator

Reference

03.2153.400/78.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 El Primero “Open Heart” - Need I say more?

Zenith - 03.0520.4021 · $2,950

This Zenith El Primero 'Open Heart' features a rare white dial variant and pairs the iconic high-beat chronograph movement with an open-heart design.

Condition: Very Good
Case diameter: ~42 mm
Movement frequency: 36,000 vph
Crystal type: Sapphire

Posted at

Mar 11, 2026, 1:54 PM

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Zenith El Primero Port Royal V

Zenith - 01/02.0450.400 · $2,750

The Zenith Port Royal V El Primero features a cool design with symmetry and attention to detail, perfect for most folks due to its 40mm case diameter.

Condition: Excellent, some minor polishing imperfections on the case and bracelet
Case diameter: 40mm
Lug width: 20mm
Lug to lug length: 47mm

Posted at

Mar 9, 2026, 2:29 PM

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Zenith Defy El Primero 21 Titanium Skeleton Box & Papers

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

The Zenith Defy El Primero 21 is a bold, technical watch housed in lightweight brushed titanium with an open-worked skeleton dial exposing the in-house El Primero 9004 movement. It has dual escapements, layered subdials, and red chronograph accents creating depth and mechanical drama. The blue rubber strap keeps it sporty and wearable.

Condition: Great pre-owned condition with light signs of wear
Case material: brushed titanium
Movement type: in-house El Primero 9004 movement
Dial description: open-worked skeleton dial

Posted at

Mar 9, 2026, 9:35 AM

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

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

A brand new Zenith Chronomaster Original Reverse Panda with a discontinued model reference number and full warranty.

Condition: Brand new, never used
Case size: 44mm diameter
Warranty type: 2-year Zenith warranty

Posted at

Mar 9, 2026, 9:33 AM

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

Zenith - 97.G383.400/38.C881 · $8,416

This Zenith El Primero Chronomaster Poker Chip is a 2022 model, with a full set of box and papers included.

Condition: Like New
Year Of Production: 2022
Comes With: box & papers

Posted at

Mar 9, 2026, 2:20 AM

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WHOLE LOTTA GOLD! Zenith El Primero Flyback 18K Grand Chronomaster XT Collector Set!

Zenith - 35.1250.4009 · $13,850

The Zenith El Primero Flyback Chronomaster in 18k gold is a large and impressive dress watch with an incredible dial and classic design.

Condition: Mint, with wear throughout due to being 18K gold
Case size: 43MM diameter
Movement type: El Primero automatic chronograph
Dial material: Off-white with silver accents

Posted at

Mar 8, 2026, 9:34 PM

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2024 Zenith Defy Extreme Titanium Diver El Primero Sunray Blue Dial FULL BOXES & CARD SET

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

This is a modern iteration of the classic Zenith El Primero Defy diver, featuring a titanium case with a funky sunray blue dial and an iconic automatic calibre 3620 movement.

Condition: Like new, just over a year old
Case diameter: 42.5mm
Movement: El Primero cal 3620 CS
Rotor description: cool rotor visible through the sapphire case back

Posted at

Mar 8, 2026, 9:30 PM

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2021 Zenith El Primero Chronomaster Sport 41mm Steel White Dial 03.3100.3600 Full Set

Zenith - 03.3100.3600/69.M3100 · $7,900

This is a 2021 Zenith El Primero Chronomaster Sport, a 41mm stainless steel watch with a white dial, featuring an automatic mechanical El Primero chronograph movement.

Condition: Preowned condition with scratches on the case and bracelet, small dings on lugs
Case material: Stainless Steel
Case dimensions: 41mm diameter
Bezel: Black Ceramic 1/10th of A Second Bezel

Posted at

Mar 6, 2026, 7:50 PM

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Zenith | 03.3200.3600/69.M3200 | El Primero | Complete Set | 2024 Year

Zenith - 03.3200.3600/69.M3200 · $7,500

A Zenith El Primero Chronomaster watch in preowned condition with a 38mm case and complete set, including 2024 year description.

Condition: Preowned, hairline scratches throughout
Case Size: 38mm

Posted at

Mar 6, 2026, 6:51 PM

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