Zenith El Primero El Primero Chronomaster Open Stainless Steel / Blue / Alligator

Reference 03.20416.4061/51.C700

Zenith El Primero Chronomaster Open Stainless Steel / Blue / Alligator

About this watch

The Zenith El Primero Chronomaster Open is not just a watch; it’s a statement. Launched in 2016, this model brings together exquisite craftsmanship, a rich history, and cutting-edge technology in a beautiful package. The stunning blue sunburst dial creates a mesmerizing play of light that shifts as you move the watch, making it a real conversation starter. With its open-heart design, you get a sneak peek into the intricate movements within. This timepiece features a robust stainless steel case with a diameter of 42 mm and a height of 14.05 mm, striking a perfect balance between being bold and wearable. The round shape feels classic yet modern, ensuring it fits well on most wrists. Equipped with a sapphire crystal, the watch is not only scratch-resistant but also offers a clear view of the dial. At the heart of this watch lies the Zenith caliber El Primero 4061, an automatic movement renowned for its precision and boasting a frequency of 36,000 vibrations per hour. This high-frequency allows for incredibly accurate timekeeping, making it a favorite among serious watch aficionados. The chronograph feature operated by a column wheel adds a layer of excitement to the experience. With its luxurious blue alligator leather strap, this watch is comfortable to wear and complements the dial beautifully.
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Key Features

  • Zenith caliber El Primero 4061 automatic movement
  • 42 mm stainless steel case with sapphire crystal
  • Open-heart design showcasing intricate mechanics
  • Chronograph feature operated by a column wheel
  • Luxurious blue alligator leather strap

Specifications

Brand
Zenith
Family
El Primero
Model
El Primero Chronomaster Open Stainless Steel / Blue / Alligator
Reference
03.20416.4061/51.C700
Movement Features
  • Hours, Minutes, Small Seconds
  • Chronograph, Column wheel
Case
Stainless Steel 42mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS][US] Zenith El Primero Chronomaster Sport - Meteorite Dial - 42mm - 03.3120.3600/76.M3100 - Full Set

[US] Zenith El Primero Chronomaster Sport - Meteorite Dial - 42mm - 03.3120.3600/76.M3100 - Full Set

Zenith - 03.3120.3600/76.M3100 · $13,400
This Zenith El Primero Chronomaster Sport features a Meteorite Dial and measures 42mm in diameter.

  • Condition: Fantastic condition, minor hairlines
  • Case size: 42mm
  • Diameter: 42mm
Posted at
Jan 13, 2026, 8:12 AM
Active
View listing on r/WatchExchange
[WTS] Brand New Zenith Chronomaster Original Reverse Panda El Primero Chronograph | 03.3200.3600/21.C903 | Full Zenith warranty | $7500 + shipping

Brand New Zenith Chronomaster Original Reverse Panda El Primero Chronograph | 03.3200.3600/21.C903 | Full Zenith warranty | $7500 + shipping

Zenith - 03.3200.3600/21.C903 · $7,500
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
  • Case material:
  • Strap type: leather strap with deployant clasp
  • Warranty: 2-year warranty (extendable to 5 years)
Posted at
Jan 12, 2026, 6:11 PM
Active
View listing on r/WatchExchange
[WTS] Zenith El Primero ref 20.0210.415 cal 3019 PHC

Zenith El Primero ref 20.0210.415 cal 3019 PHC

Zenith - 20.0210.415 · $3,500
This Zenith El Primero features the automatic caliber 3019 PHC and a gold-plated case with mineral crystal.

  • Condition: Excellent working order, may need servicing
  • Caliber: 3019 PHC automatic
  • Case material: Gold-plated
  • Crystal type: Mineral crystal
Posted at
Jan 12, 2026, 9:53 AM
Active
View listing on r/WatchExchange
[WTS] Zenith Pilot Chronometro Tipo CP-2 Flyback – El Primero 405 - Historical Re-Issue

Zenith Pilot Chronometro Tipo CP-2 Flyback – El Primero 405 - Historical Re-Issue

Zenith - 405 · $42,000
  • Movement: El Primero 405
  • Flyback: yes, flyback function
Posted at
Jan 10, 2026, 10:33 AM
Active
View listing on r/WatchExchange
[WTS][US] Zenith El Primero Chronomaster Sport - Meteorite Dial - 42mm - 03.3120.3600/76.M3100 - Full Set

[US] Zenith El Primero Chronomaster Sport - Meteorite Dial - 42mm - 03.3120.3600/76.M3100 - Full Set

Zenith - 03.3120.3600/76.M3100 · $13,450
A Zenith El Primero Chronomaster Sport watch in excellent mechanical condition, featuring a 42mm meteorite dial.

  • Condition: Fantastic condition with minor hairlines
  • Case Size: 42mm diameter
Posted at
Jan 6, 2026, 8:33 AM
Active
View listing on r/WatchExchange
[WTS] Zenith Pilot Chronometro Tipo CP-2 Flyback – El Primero – Ref. 11.2240.405/21.C773 Aged Steel

Zenith Pilot Chronometro Tipo CP-2 Flyback – El Primero – Ref. 11.2240.405/21.C773 Aged Steel

Zenith - 11.2240.405/21.C773 · $4,350
This serious pilot chronograph is robust, purpose-built, and powered by one of the finest automatic chronograph movements ever made.

  • Case size: 43mm
  • Movement: El Primero 405 automatic flyback chronograph (5Hz)
  • Dial color: Matte black dial with vintage-toned lume
Posted at
Jan 3, 2026, 11:05 AM
Active
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[WTS] Zenith Captain Chrono El Primero (03.2110.400) $2700 obo (see comment)

Zenith Captain Chrono El Primero (03.2110.400) $2700 obo (see comment)

Zenith - 03.2110.400 · $2,700
Up for sale is a Zenith Captain Chrono El Primero in excellent condition except for an intermittent mechanical issue with the date wheel. The watch keeps perfect time and has minor hairline scratches.

  • Condition: Used with functional issue (date wheel)
  • Issue: date wheel slips back occasionally
  • Accuracy: perfect time keeping after 18 hours
  • Condition: minor hairline scratches
Posted at
Dec 31, 2025, 1:01 PM
Active
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Zenith 42mm El Primero Chronomaster Open Heart Stainless Steel Complete

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
Active
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Zenith El Primero Synopsis Open Heart � BOX & PAPERS � 03.2170.4613/01.M2170

Zenith El Primero Synopsis Open Heart � BOX & PAPERS � 03.2170.4613/01.M2170

Zenith - 03.2170.4613/01.M2170 · $4,000
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
Posted at
Mar 27, 2025, 2:21 PM
Active
View listing on RolexForums