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

Reference 234.63.41.21.99.001

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

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 300 Green Diver 210.32.42.20.10.001 ( new / 2026 / box and papers )

Omega Seamaster 300 Green Diver 210.32.42.20.10.001 ( new / 2026 / box and papers )

Omega - 210.32.42.20.10.001 · $5,350
A brand new Omega Seamaster 300 Green Diver on a rubber strap, with all original boxes and papers.

  • Condition: New
  • Case size: 42mm diameter
  • Movement: 8800 Master Co-Axial
Posted at
May 21, 2026, 12:13 PM
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[WTS] Omega Seamaster 300 Heritage 234.30.41.21.01.001 Full Set (2022) – Very Good Condition

Omega Seamaster 300 Heritage 234.30.41.21.01.001 Full Set (2022) – Very Good Condition

Omega - 234.30.41.21.01.001 · $4,699
This Omega Seamaster 300 Heritage features a classic vintage-inspired design, black dial, and in-house Co-Axial Master Chronometer movement.

  • Condition: Very good condition
  • Movement: in-house Co-Axial Master Chronometer
  • Bracelet condition: some cosmetic wear consistent with normal use
Posted at
May 20, 2026, 11:31 PM
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[WTS] Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,250 - US BASED!

Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,250 - US BASED!

Omega - 2222.80 · $2,250
A good Omega Seamaster 300M Co-Axial Mid-size watch with an automatic co-axial cal 2500 movement and a 36mm steel case on original Omega steel bracelet.

  • Condition: 8.8/10 - great condition with minimal marks/hairlines on the case, caseback, and bracelet
  • Case size: 36mm diameter
  • Bracelet length: fits up to 7-7.25 inch wrists
  • Movement: automatic co-axial cal 2500
Posted at
May 20, 2026, 9:39 PM
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[WTS] Omega Seamaster 300m w/ Bracelet & Rubber (full set)

Omega Seamaster 300m w/ Bracelet & Rubber (full set)

Omega - Seamaster 300m · $3,999
A 2021 Omega Seamaster 300m with a well-loved appearance, running excellently and keeping near perfect time. It still has about 6 months left on warranty.

  • Condition: Used with scratching on bracelet and case
  • Water Resistance: 300m
  • Warranty Left: 6 months
  • Box And Papers: Yes
Posted at
May 20, 2026, 7:14 PM
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[WTS] Omega Seamaster 300 2531.80 w/extra straps and bracelets

Omega Seamaster 300 2531.80 w/extra straps and bracelets

Omega - 2531.80 · $2,900
A Omega Seamaster 300 ref. 2531.80, a well-maintained watch from 2007, recently serviced by an authorized Omega service center.

  • Condition: Great condition with slight marks throughout
  • Bracelets: OEM bracelet (full links) and Forstner Presidential bracelet
  • Straps: Zealande rubber strap and Artem Classic blue sailcloth with white stitching
Posted at
May 19, 2026, 9:26 PM
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[WTS] Omega Seamaster 300M Blue 42MM - Ref 210.30.42.20.03.001 (NEW • UNWORN 5/2026 COMPLETE SET)

Omega Seamaster 300M Blue 42MM - Ref 210.30.42.20.03.001 (NEW • UNWORN 5/2026 COMPLETE SET)

Omega - 210.30.42.20.03.001 · $5,900
This Omega Seamaster 300M Blue is a 42MM watch with various accessories included in the sale.

  • Condition: New, unworn
  • Dimensions: 42MM diameter
  • Case contents: outer sleeve, outer box, inner box, cards, instruction manual, UPC stickers, AD shipping coffin, travel case
Posted at
May 19, 2026, 7:07 PM
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[WTS] Omega Seamaster 300M White 42MM - Ref 210.32.42.20.04.001 (NEW • UNWORN 5/2026 COMPLETE SET)

Omega Seamaster 300M White 42MM - Ref 210.32.42.20.04.001 (NEW • UNWORN 5/2026 COMPLETE SET)

Omega - 210.32.42.20.04.001 · $5,600
A 42MM Omega Seamaster 300M White with a complete set of accessories and documentation.

  • Condition: new & unworn
  • Case size: 42MM diameter
  • Warranty card date: 05/18/2026
Posted at
May 19, 2026, 7:05 PM
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[WTS] Omega Seamaster 300m Peter Blake Auto Complete Set

Omega Seamaster 300m Peter Blake Auto Complete Set

Omega - 2054.50 · $3,999
This Omega Seamaster 300m Peter Blake is a complete set that includes a freshly serviced movement and various documentation.

  • Condition: Pre-owned with some wear and light marks
  • Warranty expiry date: 09/02
  • Scope of delivery: double box, 9/02 warranty card, pictograms x chronometer card, instruction booklet
Posted at
May 19, 2026, 9:52 AM
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[WTS] Omega Seamaster 300m Professional 210.32.42.20.01.001

Omega Seamaster 300m Professional 210.32.42.20.01.001

Omega - 210.32.42.20.01.001 · $3,499
A black Omega Seamaster 300m Professional, a 42mm watch that has been serviced and polished.

  • Condition: Pre-owned, serviced and polished
  • Case diameter: 42mm
Posted at
May 18, 2026, 6:16 PM
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