Zenith El Primero El Primero Chronomaster Open Stainless Steel / Blue 1969 / Alligator
Reference 03.2040.4061/52.C700
About this watch
The Zenith El Primero Chronomaster Open is a masterpiece of horology, blending precision engineering with timeless design. Its stunning blue dial features a sunburst effect and stick indexes for enhanced readability. The open-heart mechanism showcases the intricate mechanics at work, creating a captivating focal point. At 42mm in diameter, this watch strikes a balance between boldness and wearability. Crafted from stainless steel, it boasts a substantial presence without feeling cumbersome. The alligator leather strap adds a touch of luxury and comfort, perfect for both formal and casual occasions. Powered by the Zenith El Primero caliber 4061 movement, featuring 282 components and a 50-hour power reserve, this watch is designed for precision. With a frequency of 36,000 vibrations per hour, it's built to withstand daily wear and tear while being water-resistant up to 100 meters. This timepiece embodies the pinnacle of horological artistry, deserving a spot in any luxury collection.
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Key Features
- Zenith El Primero caliber 4061 movement
- 42mm stainless steel case
- Blue sunburst dial with stick indexes
- Open-heart mechanism for intricate mechanics visibility
- 50-hour power reserve and water resistance up to 100m
- Alligator leather strap with 21mm lug width
Specifications
- Brand
- Zenith
- Family
- El Primero
- Model
- El Primero Chronomaster Open Stainless Steel / Blue 1969 / Alligator
- Reference
- 03.2040.4061/52.C700
- Movement Features
-
- Hours, Minutes, Small Seconds
- Chronograph, Column wheel
- Case
- Stainless Steel 42mm
- Dial Color
- Blue
- Crystal
- Sapphire
- Water Resistance
- 100
Current Listings
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Zenith Defy Classic Aero Chronograph El Primero 46mm - Custom 3D printed Bezels $1,999
A Zenith Defy Classic Aero Chronograph featuring the El Primero 4000 SC movement in a 46mm case. The watch has an aftermarket strap/buckle and multiple custom 3D-printed bezels.
- Condition: - Keeps excellent time, strong amplitude (~300). - Crystal, dial, and hands are in excellent shape. - Case sides and lugs show visible scratches (see video/photos)
- Case Size: 46mm
- Movement: Zenith Calibre El Primero 4000 SC
- Case Condition: visible scratches on sides and lugs

Zenith 42mm El Primero Chronomaster Open Heart Stainless Steel Complete
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

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

Zenith Chronomaster - El Primero - Original - Tricolor Dial - Complete
A Zenith Chronomaster Original with a tricolor dial, featuring an automatic movement and stainless steel case.
- Condition: Excellent
- Case size: 38mm diameter

Zenith 42mm El Primero Chronomaster Open Heart Stainless Steel Complete
A Zenith El Primero Chronomaster Open Heart chronograph watch with a 42mm stainless steel case, featuring a Caliber Zenith El Primero 4061 movement and a date of manufacture in October 2014.
- Condition: Mint Condition
- Case diameter: 42mm
- Movement frequency: 36,000 VPH

Zenith 42mm El Primero Chronomaster Open Heart Stainless Steel Complete
This is a Zenith El Primero Chronomaster Open Heart chronograph watch, featuring a 42mm stainless steel case and powered by the Caliber Zenith El Primero 4061 movement.
- Condition: Mint Condition with light hairline scratches
- Case diameter: 42mm
- Movement frequency: 36,000 VPH
- Power reserve: 50 hour PR
Zenith Class Sport El Primero Chronograph Black Dial Hand Wound 02.0500.420
This Zenith Class Sport El Primero Chronograph is a hand-wound mechanical watch with a black dial and stainless steel case.
- Condition: 95%
- Size: 39mm diameter
- Function: Chronograph ; date

Zenith Grande Class Open El Primero Chrono Power Reserve 03.0520.4021, Black B&P
This Zenith Grande Class Open El Primero Chronograph features an in-house movement, chronograph function, power reserve indicator, and is water resistant to 50m.
- Condition: Good condition, some wear on the strap and a small blemish on the sapphire crystal
- Movement: Automatic, in-house Zenith 4021H
- Base movement: Zenith El Primero 400
- Alternations per hour: 36,000

ZENITH CHRONOMASTER SPORT El PRIMERO YOSHIDA GREEN DIAL LIMITED EDITION 2024
The Zenith Chronomaster Sport Yoshida 'Hulk Edition' features a stainless steel case with a green ceramic bezel and dial, powered by the El Primero Caliber 3600.
- Condition: Mint, Unpolished Condition
- Limited edition: 1 of 244 pieces
- Case material: stainless steel
- Bracelet material: stainless steel