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, Ref. 233.30.41.21.01.001, $3,700

Omega Seamaster 300, Ref. 233.30.41.21.01.001, $3,700

Omega - 233.30.41.21.01.001 · $3,700
This Omega Seamaster 300 Heritage is one of Omega's most iconic dive watches, featuring a Co-Axial Master Chronometer Cal. 8400 and anti-magnetic properties up to 15,000 gauss.

  • Condition: Excellent pre-owned condition
  • Movement: Omega Cal. 8400 (Automatic, Co-Axial Master Chronometer)
  • Case size: 41mm
  • Water resistance: None mentioned
Posted at
Apr 18, 2026, 3:48 PM
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[WTS] 2023 Mint Full Set Omega Seamaster 300 Heritage 234.30.41.21.01.001 $5600

2023 Mint Full Set Omega Seamaster 300 Heritage 234.30.41.21.01.001 $5600

Omega - 234.30.41.21.01.001 · $5,600
The Omega Seamaster 300 Heritage is a 41mm stainless steel watch designed for divers and professionals, featuring a black dial and bezel with vintage-style hour markers and diving scale.

  • Condition: Mint
  • Case size: 41mm
  • Water resistance: 30m
Posted at
Apr 18, 2026, 2:15 PM
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[WTS] Omega Seamaster 300M - 41mm Non Wave - 212.30.41.20.01.003

Omega Seamaster 300M - 41mm Non Wave - 212.30.41.20.01.003

Omega - 212.30.41.20.01.003 · $2,995
The Omega Seamaster Diver 300M 'black no-wave' features a 41mm case with a cleaner design and high-gloss dial, making it a discontinued icon perfected by Omega.

  • Condition: Great preowned condition
  • Case Size: 41mm
Posted at
Apr 18, 2026, 12:58 PM
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[WTS] Omega Seamaster 300 Blue 41mm 234.30.41.21.03.001 – Excellent Condition – Full Set – 2023

Omega Seamaster 300 Blue 41mm 234.30.41.21.03.001 – Excellent Condition – Full Set – 2023

Omega - 234.30.41.21.03.001 · $4,699
This is a modern Omega Seamaster 300 with a blue sandwich dial and matching ceramic bezel, powered by the Master Co-Axial Caliber 8912.

  • Condition: Excellent
  • Case size: 41mm diameter
  • Movement: Master Co-Axial Caliber 8912
Posted at
Apr 17, 2026, 10:24 PM
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[WTS] Omega SeaMaster 300 41mm SMPC - Full Kit - BONUS EXTRAS !!!

Omega SeaMaster 300 41mm SMPC - Full Kit - BONUS EXTRAS !!!

Omega - 212.30.41.20.01.003 · $3,750
This Omega SeaMaster 300 is a classic watch with perfect size and balance, featuring a 41mm case.

  • Condition: Beautiful condition
  • Bracelet type: Forstner - Contemporary Flat Link Brushed / Forstner - Bulllet Bracelet
  • Extra straps: Omega - OEM NATO,Stiab - Mesh
  • Accessories: Omega - OEM travel Case,Spring bar tube
Posted at
Apr 17, 2026, 6:53 PM
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[WTS] 2019 Omega Seamaster 300 1957 Trilogy Limited Edition 60th Anniversary 234.10.39.20.01.001 Full Set

2019 Omega Seamaster 300 1957 Trilogy Limited Edition 60th Anniversary 234.10.39.20.01.001 Full Set

Omega - 234.10.39.20.01.001 · $5,900
A highly collectible reissue from Omega — the Seamaster 1957 Trilogy Limited Edition, released for the 60th anniversary of the original Seamaster 300. This model perfectly captures the vintage CK2913 design with a black 'tropical' style dial, broad arrow hands.

  • Condition: Pre-owned, shows light signs of wear on bezel, case sides, case back, lugs, and bracelet/clasp
  • Movement: Co-Axial Master Chronometer Calibre 8806 (METAS certified)
  • Power reserve: 55 hours
  • Crystal: Sapphire (vintage-style domed)
Posted at
Apr 17, 2026, 5:10 PM
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[WTS] BNIB Omega Seamaster 300 ONLY $10k!

BNIB Omega Seamaster 300 ONLY $10k!

Omega - 210.60.42.20.99.001 · $10,000
This Omega Seamaster 300 is brand new and includes the entire set. The reference number is 210.60.42.20.99.001.

  • Condition: Brand new, full set
  • Rrp: $17.2k plus tax
Posted at
Apr 14, 2026, 3:57 PM
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[WTS] 2018 Omega Seamaster 300 Co-Axial 233.30.41.21.01.001 Full Set Excellent

2018 Omega Seamaster 300 Co-Axial 233.30.41.21.01.001 Full Set Excellent

Omega - 233.30.41.21.01.001 · $4,895
A modern reinterpretation of the 1957 classic with vintage-inspired lume and a transparent caseback.

  • Condition: Excellent
  • Year: 2018
Posted at
Apr 14, 2026, 12:30 PM
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[WTS] Omega Seamaster 300M Co-Axial 41mm 2220.80 Box and Card - $2,890

Omega Seamaster 300M Co-Axial 41mm 2220.80 Box and Card - $2,890

Omega - 2220.80 · $2,890
Up for sale is my Omega Seamaster 2220.80, a 41mm automatic co-axial cal 2500 movement watch with a steel case and original Omega steel bracelet.

  • Condition: 8.9/10, great condition with minimal marks/hairlines
  • Case size: 41mm diameter
  • Movement: automatic co-axial cal 2500
  • Bracelet fit: up to 7.25 inch wrists depending on wrist shape
Posted at
Apr 14, 2026, 4:34 AM
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