Omega Seamaster 300 Seamaster 300 Co-Axial Master Chronometer Yellow Gold / Malachite

Reference 234.63.41.21.99.001

About this watch

The Omega Seamaster 300 Co-Axial Master Chronometer in Yellow Gold and Malachite is a masterpiece of horology, combining luxurious materials, precision engineering, and stunning design. At its heart is the automatic Omega caliber 8913 movement, boasting a chronometer rating, 60-hour power reserve, and 25,200 vibrations per hour for unparalleled accuracy. The watch features a striking yellow gold case and Malachite dial, with arrow-shaped hands providing both style and clarity. With its impressive water resistance of 300 meters, this timepiece is perfect for divers and luxury watch collectors alike. Whether you're exploring coral reefs or attending a gala, the Omega Seamaster 300 ensures you're always on time and in style.
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Key Features

  • Automatic Omega caliber 8913 movement
  • Chronometer-rated accuracy
  • 60-hour power reserve
  • Yellow gold case with Malachite dial
  • Rotating bezel for timing dives or activities
  • Water resistance of 300 meters
  • Sapphire glass protection against scratches and impacts

Specifications

Brand
Omega
Family
Seamaster 300
Model
Seamaster 300 Co-Axial Master Chronometer Yellow Gold / Malachite
Reference
234.63.41.21.99.001
Movement
8913
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
Yellow Gold 41mm
Dial Color
Green
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Omega Seamaster 300M

Omega Seamaster 300M

Omega - Seamaster 300M · $4,500
This Omega Seamaster Diver 300M is a 42mm 2019 model that keeps good time, accompanied by its full box and papers. It includes both the bracelet and an Omega rubber strap.

  • Condition: Pre-owned with normal wear
  • Case size: 42mm diameter
  • Water resistance: 300m depth rating
Posted at
Apr 8, 2026, 7:15 PM
Active
[WTS] Omega Seamaster 300M Black Aluminum / Orange 210.30.42.20.01.018 ( new / 2025 / box and papers )

Omega Seamaster 300M Black Aluminum / Orange 210.30.42.20.01.018 ( new / 2025 / box and papers )

This Omega Seamaster 300 is a brand new, Master Chronometer-certified watch featuring a 42mm stainless steel case and orange accents on a mesh bracelet.

  • Condition: Brand new
  • Case size: 42mm diameter
  • Movement: 8806 Master Co-Axial
Posted at
Apr 8, 2026, 12:18 PM
Active
[WTS] Omega Seamaster 300M Black / Orange Diver 210.32.42.20.01.006 ( new / 2025 / box and papers )

Omega Seamaster 300M Black / Orange Diver 210.32.42.20.01.006 ( new / 2025 / box and papers )

This Omega Seamaster 300M Black / Orange Diver features a 42mm stainless steel case with an orange rubber strap and a black & orange dial. It comes complete with all boxes, papers, and booklet.

  • Condition: Brand new
  • Case size: 42mm diameter
  • Movement: 8806 Master Co-Axial
Posted at
Apr 8, 2026, 12:14 PM
Active
[WTS] Omega Seamaster 300M 42mm Black 210.30.42.20.01.001 ( new / 2025 / box and papers )

Omega Seamaster 300M 42mm Black 210.30.42.20.01.001 ( new / 2025 / box and papers )

This Omega Seamaster 300 is a brand new 42mm stainless steel watch with a black dial and bezel on a bracelet, complete with all original boxes, papers, and warranty.

  • Condition: Brand new
  • Case size: 42mm diameter
  • Movement: 8800 Master Co-Axial
Posted at
Apr 8, 2026, 12:10 PM
Active
[WTS] BNIB Omega Seamaster 300 ONLY $10k!

BNIB Omega Seamaster 300 ONLY $10k!

Omega - 210.60.42.20.99.001 · $10,000
A Brand new Omega Seamaster 300 is being listed for sale.

  • Condition: Brand new, full set
  • Rrp: $17.2k plus tax
Posted at
Apr 7, 2026, 4:32 PM
Active
[WTS] Omega Seamaster 300 Heritage - Mint Condition + 2 new straps

Omega Seamaster 300 Heritage - Mint Condition + 2 new straps

The Omega Seamaster 300 Heritage reference 234.30.41.21.03.001 is a modern reissue of Omega's classic dive watch with a beautiful blue sandwich dial and vintage-inspired design. It blends vintage aesthetics with Omega's modern Master Chronometer movement and METAS certification, making it one of the most compelling heritage divers on the market. The watch comes as a full set, still under Omega factory warranty.

  • Condition: Near Mint
  • Case diameter: 41mm
  • Movement type: Omega Master Chronometer automatic movement (Calibre 8912)
  • Certification: METAS certified Master Chronometer
Posted at
Apr 7, 2026, 12:18 PM
Active
[WTS] Omega Seamaster 300 Master Co-axial Blue Dial Box&papers Ref 233.62.41.21.03.00

Omega Seamaster 300 Master Co-axial Blue Dial Box&papers Ref 233.62.41.21.03.00

This Omega Seamaster 300 Master Co-axial features a blue dial, an 18kt sedna gold bezel, and has been upgraded with an OEM black leather strap.

  • Condition: Very good
  • Bezel material: 18kt sedna gold
  • Strap: OEM black leather
Posted at
Apr 7, 2026, 11:27 AM
Active
[WTS] Omega Seamaster 300 Master Co-Axial Titanium Blue Dial 233.90.41.21.03.001 Full Kit $4,650

Omega Seamaster 300 Master Co-Axial Titanium Blue Dial 233.90.41.21.03.001 Full Kit $4,650

Up for sale is an Omega Seamaster 300 Master Co-Axial in titanium with a blue sandwich dial, featuring an automatic movement and a 300m water resistance.

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 41mm
  • Movement: Omega Master Co-Axial Caliber 8400 automatic movement
  • Water resistance: 300m
Posted at
Apr 6, 2026, 10:07 PM
Active
[WTS] Omega Seamaster 300M 210.30.42 Blue Dial 42mm - $3,450

Omega Seamaster 300M 210.30.42 Blue Dial 42mm - $3,450

Omega - 210.30.42 · $3,450
Up for sale is my Omega Seamaster Blue dial 210.30.42, measuring at 42mm with an automatic Calibre Omega 8800 movement.

  • Condition: great condition, 8.9/10 exterior
  • Movement: automatic Calibre Omega 8800
  • Case size: 42mm diameter
  • Case material: steel
Posted at
Apr 6, 2026, 9:45 PM
Active