Zenith El Primero Chronomaster Open Stainless Steel / Silver / Rubber

Reference 03.3300.3604/69.C823

Zenith Chronomaster Open Stainless Steel / Silver / Rubber

About this watch

The Zenith Chronomaster Open 03.3300.3604/69.C823 is a masterpiece of horology, showcasing the brand's dedication to precision and luxury. This stunning timepiece features a round case crafted from high-quality stainless steel, boasting a diameter of 39.50 mm. The sunburst finish on the silver dial catches the light beautifully, giving it a dynamic and eye-catching appearance. One of the standout features is the open dial, providing a window into the intricate workings of the movement. The stick and dot indexes add a touch of elegance, while the stick hands are designed for easy readability. Comfort is key when it comes to wearing a watch, and Zenith doesn't disappoint with its rubber strap, which adds a sporty touch and ensures durability and comfort. The El Primero 3604 automatic chronograph movement boasts high precision and reliability, operating at 5Hz and measuring time with a precision of 1/10th of a second. With a power reserve of 60 hours, you can confidently wear it without worrying about winding it daily. Certified as a chronometer, this watch will keep time impeccably. The sapphire glass is scratch-resistant and provides a clear view of the dial, while the stainless steel case ensures durability in everyday wear. With a water resistance of 100 meters, this watch is suitable for swimming and snorkeling. The combination of Swiss craftsmanship, innovative movement, and timeless design makes this watch a worthy addition to any collection.
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Key Features

  • Zenith caliber El Primero 3604 automatic chronograph movement
  • Stainless Steel case with sapphire glass
  • Water Resistance: 100 meters
  • Power Reserve: 60 hours
  • 5Hz frequency for precise timekeeping
  • Certified Chronometer for accurate timekeeping

Specifications

Brand
Zenith
Family
El Primero
Model
Chronomaster Open Stainless Steel / Silver / Rubber
Reference
03.3300.3604/69.C823
Movement Features
  • Hours, Minutes, Small Seconds
  • Chronograph, Column wheel
Case
Stainless Steel 39.5mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS][US] Zenith El Primero Chronomaster Sport - White Dial - 41mm - 03.3100.3600/69.M3100 - Full Set

[US] Zenith El Primero Chronomaster Sport - White Dial - 41mm - 03.3100.3600/69.M3100 - Full Set

Zenith - 03.3100.3600/69.M3100 · $7,550
Up for sale is a Zenith El Primero Chronomaster Sport with a white dial and 41mm case, featuring a perfectly working mechanical movement.

  • Condition: Fantastic condition with few hairlines on clasp, case, and bracelet
  • Diameter: 41mm
  • Case Condition: few hairlines on clasp, case, and bracelet
Posted at
Apr 17, 2026, 6:30 AM
Active
View listing on r/WatchExchange
[WTS] Zenith “Open Heart” - El Primero Movement - Price Reduced

Zenith “Open Heart” - El Primero Movement - Price Reduced

Zenith - 03.0520.4021 · $2,550
A Zenith El Primero automatic chronograph with an open-heart design and a rare white dial variant.

  • Condition: Very Good
  • Movement Type: El Primero high-beat automatic chronograph (36,000 vph)
  • Case Size: ~42 mm diameter
  • Crystal Type: Sapphire crystal
Posted at
Apr 16, 2026, 8:32 PM
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View listing on r/WatchExchange
[WTS] 1970 Zenith El Primero A385 Chronograph - $7,250

1970 Zenith El Primero A385 Chronograph - $7,250

Zenith - A385 · $7,250
This Zenith El Primero A385 is a limited edition chronograph from the late 1960s and early 1970s, featuring an automatic movement that was historically significant for its time. It has been well maintained and is in excellent condition with minimal signs of wear.

  • Condition: Excellent
  • Movement caliber: 3019 PHC/400
  • Case dimensions: [object Object]
  • Power reserve: 50 hours
Posted at
Apr 16, 2026, 8:05 PM
Active
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[WTS] Zenith El Primero Chronomaster Revival Shadow 97.T384.4061/21.C822 ( excellent / 2022 / box and papers )

Zenith El Primero Chronomaster Revival Shadow 97.T384.4061/21.C822 ( excellent / 2022 / box and papers )

Zenith - 97.T384.4061/21.C822 · $5,995
Up for sale is an excellent condition Zenith El Primero Chronomaster Revival Shadow, complete with all boxes, papers, and booklets.

  • Condition: Excellent
  • Case material: Titanium
  • Case size: 37mm
  • Movement: El Primero
Posted at
Apr 16, 2026, 12:24 PM
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[WTS] Zenith Defy El Primero 21 $5050

Zenith Defy El Primero 21 $5050

Zenith - Defy El Primero 21 · $5,050
A Zenith El Primero 21 is being sold to fund a Credor purchase during the seller's Japan trip.

  • Condition: Moderate wear, light scratches
Posted at
Apr 13, 2026, 7:32 PM
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[WTS] Rare Zenith El Primero Captain Winsor Annual Calendar Rose Gold w/ Diamond Markers + Silvered Dial

Rare Zenith El Primero Captain Winsor Annual Calendar Rose Gold w/ Diamond Markers + Silvered Dial

Zenith - El Primero Captain Winsor Annual Calendar · $24,800
This listing is for a rare Zenith El Primero Captain Winsor Annual Calendar Rose Gold w/ Diamond Markers + Silvered Dial.

  • Diameter: 44mm
Posted at
Apr 13, 2026, 6:00 PM
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[WTS] Zenith Chronomaster Original El Primero Chronograph Reverse Panda | 03.3200.3600/21.C903 | Brand New with Full Zenith warranty

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

Zenith - 03.3200.3600/21.C903 · $6,999
A brand new Zenith Chronomaster Original Reverse Panda, a discontinued model still in its protective stickers.

  • Condition: Brand new, never used
  • Case size: not specified
  • Water resistance: not specified
  • Strap material: leather
Posted at
Apr 13, 2026, 8:56 AM
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[WTS] Ultra Rare Zenith El Primero Tourbillon Chronograph in 18K White Gold - Collector Set - JUST 50 MADE!

Ultra Rare Zenith El Primero Tourbillon Chronograph in 18K White Gold - Collector Set - JUST 50 MADE!

Zenith - 65.1260.4005/21.C505 · $21,250
The Zenith El Primero Tourbillon Chronograph is a legendary watch featuring a tourbillon and chronograph functions in a limited edition of just 50 pieces. It comes in a beautiful collector set including an appraisal from Zenith showing a value of six figures.

  • Condition: Really clean condition, including the sapphire crystal.
  • Movement Type: El Primero automatic chronograph cal 4005
  • Case Material: 45MM 18K solid white gold
  • Case Dimensions: 45mm diameter
Posted at
Apr 12, 2026, 9:52 PM
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[WTS] Zenith El Primero Chronomaster Sport Titanium Full Box & Cards Set Ref 95.3100.3600/39.M3100

Zenith El Primero Chronomaster Sport Titanium Full Box & Cards Set Ref 95.3100.3600/39.M3100

Zenith - 95.3100.3600/39.M3100 · $8,650
This is a 2-year-old Zenith El Primero Chronomaster Sport Titanium watch with a gray dial and tri-colored chrono sub-dials. It features a 41mm full titanium case and an iconic chronograph movement.

  • Condition: like new, with some light wear on the titanium bezel and case sides
  • Case size: 41mm diameter
  • Movement type: automatic
  • Depth rating: 30m water resistance
Posted at
Apr 12, 2026, 8:32 PM
Active
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