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

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Condition: Needs new spring
Bezel function: non-turning
Bracelet length: 7 inch

Posted at

Feb 23, 2026, 5:00 PM

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Bracelet length: 7"
Bezel functionality: turns but no clicks

Posted at

Feb 23, 2026, 5:00 PM

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Condition: BNIB with minor wear on the clasp
Purchase Year: 2023
Box Contents: papers,hangtag,retail sticker,box
Authenticity Documentation: letter of guarantee/authenticity from Bennison watches

Posted at

Feb 23, 2026, 2:58 PM

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Condition: Good condition, with signs of scuffing and superficial wear on the clasp
Bracelet size: 6.5"
Extra links: 3 full and 2 half sized
Timekeeping accuracy: -2 to -7 seconds per day

Posted at

Feb 22, 2026, 7:38 PM

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Omega - 210.90.42.20.10.001 · $8,800

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Condition: Used, remainder of warranty
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Strap: extra rubber strap, but may require alternative deployment for proper fit

Posted at

Feb 22, 2026, 11:52 AM

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Omega - 210.32.42.20.06.001 · $3,550

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Condition: Excellent, few desk diving marks
Case material: unknown (not specified)
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Band type: Original Omega rubber strap

Posted at

Feb 19, 2026, 9:52 AM

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Condition: Very good condition with minimal marks/hairlines on the case, caseback, and bracelet.
Movement: automatic co-axial cal 2500
Bracelet size: fits up to 7-7.25 inch wrists depending on wrist shape
Case diameter: 41mm

Posted at

Feb 18, 2026, 8:05 PM

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Omega - 234.30.41.21.01.001 · $6,195

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Condition: Excellent
Case size: 41mm diameter
Bracelet type: matching
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Posted at

Feb 18, 2026, 5:06 PM

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2024 Omega Seamaster 300 Summer Blue

Omega - Seamaster 300 Summer Blue · $4,450

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Condition: Pre-owned with some light honest wear
Year: 2024
Owner History: one owner

Posted at

Feb 17, 2026, 8:34 PM

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