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 300M - Blue Wave Dial

OMEGA Seamaster 300M - Blue Wave Dial

OMEGA - 210.30.42.20.03.001 · $3,950
This OMEGA Seamaster Diver 300M features a blue wave dial and is part of the current-generation redesign with ceramic bezel and METAS-certified Master Chronometer movement.

  • Condition: Pre-owned, excellent condition with minimal handling wear
  • Case size: 42mm diameter
  • Bezel material: ceramic
  • Movement certification: METAS-certified Master Chronometer
Posted at
Dec 14, 2025, 11:31 AM
Active
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[WTS] Omega Seamaster 300 212.30.41.20.01.003 Authenticated in Box

Omega Seamaster 300 212.30.41.20.01.003 Authenticated in Box

Omega - 212.30.41.20.01.003
  • Condition: Authenticated in Box
  • Authentication: authenticated by Omega
Posted at
Dec 12, 2025, 9:40 AM
Active
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[WTS] Omega Seamaster 300m ‘Electric Blue’ 2263.80

Omega Seamaster 300m ‘Electric Blue’ 2263.80

Omega - 2263.80 · $1,599
A 36mm Omega Seamaster 300m Quartz watch with an Electric Blue finish.

  • Size: 36mm diameter
  • Material: quartz
Posted at
Dec 11, 2025, 3:03 PM
Active
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Omega Seamaster 300M Grey dial Full set 42MM [WTS]

Omega Seamaster 300M Grey dial Full set 42MM

Omega - 210.32.42.20.06.001 · $3,850
A Omega Seamaster 300M with a grey dial, featuring a chronometer with date, helium escape valve, uni-rotating bezel, and transparent caseback.

  • Condition: Good condition
  • Case diameter: 42 MM
  • Dial color: Grey
  • Weight: 110 grams
Posted at
Dec 10, 2025, 7:19 PM
Active
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[WTS] Omega Seamaster 300 Master Co-Axial – 41mm “Retro” – 233.30.41.21.01.001 – $3,399 Shipped

Omega Seamaster 300 Master Co-Axial – 41mm “Retro” – 233.30.41.21.01.001 – $3,399 Shipped

Omega - 233.30.41.21.01.001 · $3,399
This Omega Seamaster 300 Master Co-Axial features a 41mm stainless steel case, black dial with vintage-tone lume, and a ceramic bezel.

  • Condition: Excellent overall with light, honest wear
  • Case size: 41mm
  • Water resistance: 300m
  • Movement type: Cal. 8400
Posted at
Dec 7, 2025, 9:47 PM
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[WTS] OMEGA Seamaster 300 Black - Full Set - B&P - 8/10 Condition

OMEGA Seamaster 300 Black - Full Set - B&P - 8/10 Condition

OMEGA - 210.32.42.20.01.001 · $4,450
A study in stealth and sophistication featuring a laser-engraved wave-pattern dial and polished ceramic bezel in deep black. Paired with its brushed steel case and integrated bracelet, this 42mm watch delivers a powerful monochromatic statement.

  • Condition: 8/10, minor used handling marks on case
  • Case size: 42mm
  • Water resistance: 300m
Posted at
Dec 7, 2025, 7:50 PM
Active
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[WTS] Omega Seamaster 300M Nekton 42mm 210.30.42.20.01.002 Full set

Omega Seamaster 300M Nekton 42mm 210.30.42.20.01.002 Full set

Omega - 210.30.42.20.01.002 · $4,400
Up for sale is an Omega Seamaster 300M Nekton edition 42mm, featuring a primary matte finish dial with polished waves and solid case back.

  • Condition: Great to excellent condition, some marks on the case and bracelet
  • Movement: Omega Cal. 8806, METAS certified
  • Water resistance: not specified
  • Strap: OEM Omega rubber strap (can be included in the sale for additional cost)
Posted at
Dec 7, 2025, 12:02 PM
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[WTS] Omega Seamaster 300M - Ref # 212.30.41.20.03.001, 2018, Box and Papers

Omega Seamaster 300M - Ref # 212.30.41.20.03.001, 2018, Box and Papers

Omega - 212.30.41.20.03.001 · $3,550
This Omega Seamaster Professional Diver 300M is a sleek 2018 model featuring a 41mm stainless steel case, blue dial, and automatic 2500 Co-Axial movement.

  • Condition: Very good
  • Case size: 41mm diameter
  • Material: stainless steel
  • Bezel type: blue ceramic uni-directional
Posted at
Dec 6, 2025, 6:01 PM
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[wts] MAR 2025 Omega Seamaster 300M Ceramic and titanium 43.5mm 210.92.44.20.01.002

MAR 2025 Omega Seamaster 300M Ceramic and titanium 43.5mm 210.92.44.20.01.002

Omega - 210.92.44.20.01.002 · $6,200
A 43.5mm Omega Seamaster 300M Ceramic and titanium model from the MAR 2025 production run, featuring a barely worn OEM rubber strap and buckle.

  • Condition: Near mint
  • Case Material: Ceramic and titanium
  • Case Size: 43.5mm diameter
  • Strap Type: Authentic Omega rubber strap
Posted at
Dec 6, 2025, 12:04 PM
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