Omega Seamaster 300 Seamaster 300 Master Chronometer Stainless Steel / Blue / Bracelet

Reference 234.30.41.21.03.001

About this watch

The Omega Seamaster 300 Master Chronometer, reference 234.30.41.21.03.001, is a stunning example of craftsmanship and precision fused into a timepiece. Its striking blue dial, crafted from high-quality stainless steel, exudes durability and elegance. The watch seamlessly transitions between casual and formal settings, making it suitable for both everyday wear and special occasions. At the core of the Seamaster 300 lies the automatic Omega Caliber 8912, featuring a chronometer and co-axial escapement for exceptional accuracy and reliability. This movement is built to last, with 38 jewels and a 60-hour power reserve. The watch's impressive water resistance of 300 meters ensures it can withstand even the most demanding underwater adventures. The Omega Seamaster 300 Master Chronometer is not just a timepiece; it's a celebration of craftsmanship, innovation, and style. Its rich history, modern features, and breathtaking design make it an investment that any watch enthusiast would be proud to own.
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MSRP: $7,100
Market Price: $4,467

Key Features

  • Automatic Omega Caliber 8912 movement
  • 300 meters water resistance
  • 41mm stainless steel case diameter
  • 38 jewels for exceptional accuracy
  • 60-hour power reserve for reliability
  • Co-axial escapement for reduced friction and increased accuracy
  • Chronometer certification for precision and reliability

Specifications

Brand
Omega
Family
Seamaster 300
Model
Seamaster 300 Master Chronometer Stainless Steel / Blue / Bracelet
Reference
234.30.41.21.03.001
Movement
8912
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
41mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Omega Seamaster 300M Co-Axial 44mm Chronograph 212.30.44.50.03.001!

Omega Seamaster 300M Co-Axial 44mm Chronograph 212.30.44.50.03.001!

  • Case diameter: 44mm
  • Water resistance: 300m
Posted at
Jun 24, 2025, 2:58 PM
Active
[WTS][US] Omega Seamaster 300 Heritage - 41mm - Black Dial - 234.30.41.21.01.001 - Full Set

[US] Omega Seamaster 300 Heritage - 41mm - Black Dial - 234.30.41.21.01.001 - Full Set

This Omega Seamaster 300 Heritage is a mechanical watch with a 41mm black dial.

  • Condition: Excellent/Fantastic (minor hairlines)
  • Case size: 41mm
  • Dial color: Black
Posted at
Jun 24, 2025, 8:40 AM
Active
[WTS] Omega Seamaster 300m Black Box & Papers (Comes with NATO, rubber, mesh, bracelet)

Omega Seamaster 300m Black Box & Papers (Comes with NATO, rubber, mesh, bracelet)

Omega - 300M · $6,000
The Omega Seamaster Diver 300M features a sleek black ceramic bezel, black wave-pattern dial, and skeletonized hands filled with Super-LumiNova for maximum legibility.

  • Condition: Excellent / Gently worn
  • Case size: 42mm
  • Bezel material: black ceramic
  • Dial pattern: wave-pattern
Posted at
Jun 23, 2025, 8:52 PM
Active
[WTS] Omega Seamaster 300 'Summer Blue' 75th Anniversary - Box & Papers

Omega Seamaster 300 'Summer Blue' 75th Anniversary - Box & Papers

Omega - 23430412103002 · $4,600
The Omega Seamaster 300 'Summer Blue' is a special edition watch released to commemorate the 75th anniversary of the Seamaster. It features a blue varnished dial with a gradient finish, matching ceramic bezel and commemorative caseback. The watch has an automatic Co-Axial Master Chronometer Calibre 8912 and comes as a complete set.

  • Condition: Excellent all around condition
  • Case size: 41mm
  • Water resistance: 300m
  • Movement: Automatic Omega Co-Axial Master Chronometer Calibre 8912
Posted at
Jun 23, 2025, 1:58 PM
Active
[WTS] Omega Seamaster 300 NTTD

Omega Seamaster 300 NTTD

This Omega Seamaster 300 NTTD is a well-crafted timepiece with good condition, suitable for everyday wear.

  • Condition: Good
  • Includes: Box and Papers (No NATO strap)
  • Payment method: Wire
  • Return policy: 24 hour no questions asked return policy
Posted at
Jun 23, 2025, 1:17 PM
Active
[WTS] Omega Seamaster 300M Ceramic Black Black $6100

Omega Seamaster 300M Ceramic Black Black $6100

A black ceramic Omega Seamaster 300M with a domed scratch-resistant sapphire crystal and anti-reflective treatment on both sides. It features a self-winding movement with a power reserve of 55 hours.

  • Condition: Incredible condition, no scratches or signs of wear
  • Case size: 40mm diameter
  • Water resistance: 300m / 1000 feet
  • Movement caliber: Omega 8806
Posted at
Jun 21, 2025, 12:40 PM
Active
[WTS] Omega Seamaster 300M Ceramic “Black Black” $6100

Omega Seamaster 300M Ceramic “Black Black” $6100

a luxury watch for sale with additional details provided

  • Price: $6100
Posted at
Jun 21, 2025, 12:40 PM
Active
Omega Seamaster 300 Summer Blue Edition Ref 234.30.41.21.03.002

Omega Seamaster 300 Summer Blue Edition Ref 234.30.41.21.03.002

Omega - 234.30.41.21.03.002 · $4,950.005
This Omega Seamaster 300 Summer Blue Edition is a highly sought-after model, part of the popular Summer Blue line released in recent years.

  • Condition: great shape
  • Includes: watch, outer box, inner box, operations manual, pictogram, master chronometer, warranty cards, extra links
  • Shipping: overnight, fully insured with signature required
Posted at
Jun 21, 2025, 9:23 AM
Active
[WTS] 1969 Omega Seamaster 300 (Ref. 165.024) W BOX & *OMEGA REFURBISHED*

1969 Omega Seamaster 300 (Ref. 165.024) W BOX & *OMEGA REFURBISHED*

Omega - 165.024 · $8,499
1969 Omega Seamaster 300 produced by Centrale Boîtes, refurbished at Omega, comes with Omega authentication document and new 'old style' Omega box.

  • Condition: Very good, with slight aging of hands and dial
  • Calibre: 550
  • Case size: 42mm
  • Case maker: Centrale Boîtes (CB)
Posted at
Jun 21, 2025, 8:57 AM
Active