Omega Seamaster 300 Seamaster 300 Master Chronometer Stainless Steel / Black / Bracelet

Reference 234.30.41.21.01.001

Omega Seamaster 300 Master Chronometer Stainless Steel / Black / Bracelet

About this watch

The Omega Seamaster 300 Master Chronometer is a luxurious timepiece that embodies the spirit of adventure while delivering peak performance. Its stunning black dial, mixed indexes, and arrow-shaped hands create a sophisticated look that's perfect for formal or casual settings. The sapphire crystal glass provides excellent clarity, and the open case back showcases Omega's craftsmanship. This watch is built to withstand diving conditions with its robust stainless steel bracelet and 300-meter water resistance. At its core beats the Omega caliber 8912, an automatic movement featuring a Co-Axial escapement that minimizes friction, enhancing precision and reliability. The Seamaster 300 Master Chronometer is a certified chronometer that promises reliability, making it a worthy companion for years to come.

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MSRP: $7,100

Market Price: $4,115

Key Features

41mm Round Case
Stainless Steel Bracelet with 21mm Lug Width
Sapphire Crystal Glass
Omega Caliber 8912 Automatic Movement
Co-Axial Escapement and METAS Certification
300-Meter Water Resistance

Specifications

Brand

Omega

Family

Seamaster 300

Model

Seamaster 300 Master Chronometer Stainless Steel / Black / Bracelet

Reference

234.30.41.21.01.001

Movement

8912

Movement Features

Hours, Minutes, Seconds
Chronometer, Co-Axial Escapement

Case

41mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

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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Omega Seamaster Heritage - Full Set

Omega - 234.30.41.21.01.001 · $4,850

This Omega Seamaster Heritage features a 41 mm stainless steel case with a black dial, black oxalic anodized aluminium bezel, and a transparent sapphire crystal caseback showing the OMEGA Co-Axial Master Chronometer Calibre 8912.

Condition: Excellent
Bracelet material: stainless steel
Crystal type: sapphire crystal

Posted at

Apr 10, 2026, 5:23 PM

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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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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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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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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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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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