Zenith El Primero El Primero Stratos Flyback Two Tone

Reference 51.2061.405/75.R516

About this watch

The Zenith El Primero Stratos Flyback Two Tone is a masterpiece of luxury watchmaking, combining elegant design, precision engineering, and rich heritage. This stunning timepiece features a harmonious blend of rose gold and stainless steel, exuding sophistication and versatility. The brown dial boasts stick and dot indexes for modern readability, while the chronograph functions are clearly marked for easy operation. At its core is the renowned El Primero 405B movement, celebrated for its precision, reliability, and flyback function. With a power reserve of 50 hours and water resistance of 100 meters, this watch is designed to keep up with an active lifestyle while looking stunning on the wrist. Whether you're in a boardroom or out for dinner, the Zenith El Primero Stratos Flyback is the perfect accessory, offering excellent value and durability that will last a lifetime.

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Key Features

El Primero 405B automatic chronograph movement
45mm diameter case with rose gold and stainless steel construction
Brown dial with stick and dot indexes for modern readability
Flyback function for easy timing of multiple events
50-hour power reserve and water resistance up to 100 meters

Specifications

Brand

Zenith

Family

El Primero

Model

El Primero Stratos Flyback Two Tone

Reference

51.2061.405/75.R516

Movement Features

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

Case

45mm

Dial Color

Brown

Crystal

Sapphire

Water Resistance

100

Current Listings

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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INSANE Ultra Rare Zenith El Primero Tourbillon Chronograph in 18K White Gold - Collector Set Just 50 Made!

Zenith - 65.1260.4005/21.C505 · $20,950

The Zenith El Primero is a legendary chronograph featuring a tourbillon, a limited edition of just 50 made in full 18 karat white gold. It comes with a beautiful collector set and an appraisal showing a value of six figures.

Condition: Really clean condition, minimal wear throughout
Case Diameter: 45mm
Movement: El Primero automatic chronograph cal 4005

Posted at

May 3, 2026, 10:49 PM

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Zenith El Primero ref. 01.0200.415 Big Blue circa 1973

Zenith - 01.0200.415 · $4,995

The Zenith El Primero is a legendary high-frequency automatic chronograph movement first introduced in 1969, featuring an integrated automatic chronograph movement that beats at 5 Hz (36,000 vph) and allows it to measure elapsed time with a precision of 1/10th of a second. The watch has a 'space-age' 1970s aesthetic and rocker style pushers.

Condition: Excellent
Case size: 42mm diameter
Lug to lug: 44h
Thickness: 14.3mm

Posted at

May 3, 2026, 8:02 PM

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Brand New Zenith Chronomaster Original El Primero Chronograph Reverse Panda | 03.3200.3600/21.C903 | June 2025 Zenith warranty

Zenith - 03.3200.3600/21.C903 · $6,900

The Zenith Chronomaster Original El Primero Chronograph Reverse Panda is a discontinued model that comes with a brand new Zenith leather strap and a deployant clasp. It features the original protective stickers still intact.

Condition: Brand new, unused
Warranty Start Date: June 2025
Shipping Method: USPS Registered Mail
Shipping Restriction: CONUS only

Posted at

May 2, 2026, 5:07 PM

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Zenith Defy Skyline Chrono Silver - El Primero - Full Set 2024 - Integrated Bracelet & Green Strap w/ Deployant - $7,850

Zenith - 03.9500.3600/01.I001 · $7,850

This Zenith Defy Skyline Chronograph features the El Primero 3600 movement, a high-beat automatic chronograph with a 60-hour power reserve and 35 jewels. The watch has a silver/white 'Starry Sky' dial and is available in full set, including an integrated stainless steel bracelet and OEM Zenith green rubber strap.

Condition: Excellent
Movement: El Primero 3600, automatic chronograph
Frequency: 36,000 vph (5Hz)
Power reserve: 60 hours

Posted at

May 2, 2026, 12:50 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 · $7,550

A Zenith El Primero Chronomaster Sport featuring a white dial and 41mm case size is up for sale.

Condition: Fantastic condition with few hairlines
Case diameter: 41mm
Bracelet length: fully linked

Posted at

Apr 30, 2026, 8:10 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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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

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