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

Omega Seamaster 300 Heritage Co-Axial Chronometer 234.30.41.21.01.001 Complete Set

Omega - 234.30.41.21.01.001 · $6,845

The Omega Seamaster 300 Heritage is a vintage-inspired watch with modern features, featuring a black dial, broad arrow hands, and a steel case.

Condition: Excellent
Case material: steel
Bracelet: matching steel bracelet
Box set included: yes

Posted at

Feb 2, 2026, 7:32 PM

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2024 Omega Seamster 300 Heritage 234.30.41.21.01.001 Full Set Excellent

Omega - 234.30.41.21.01.001 · $5,950

The Omega Seamaster 300 Co-Axial Master Chronometer blends vintage dive watch aesthetics with modern performance, housing a matte black dial and aluminum bezel in a 41mm stainless steel case.

Condition: Excellent
Case size: 41mm
Water resistance: 300m
Movement: Caliber 8912

Posted at

Jan 27, 2026, 12:18 PM

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Omega Seamaster Heritage 300 234.30.41.21.01.001 Box Papers 🌊

Omega - 234.30.41.21.01.001 · $4,788

The Omega Seamaster Heritage 300 is a vintage-inspired watch, double boxed, and comes with all original accessories.

Condition: Very good condition, with minor marks
Box: Comes double boxed
Papers: Three warranty cards dated '21
Manual: Manual included

Posted at

Jan 23, 2026, 3:51 PM

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Omega Seamaster 300 Heritage Co-Axial Chronometer 234.30.41.21.01.001 Complete Set

Omega - 234.30.41.21.01.001 · $6,845

The Omega Seamaster 300 Heritage is a vintage-inspired dive watch with a timeless design, featuring a black dial, broad arrow hands, and warm toned lume.

Condition: Excellent
Case material: steel
Bracelet type: matching
Box set included: true

Posted at

Jan 21, 2026, 3:02 PM

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Omega Seamaster 300M Co-Axial 41mm 2220.80 Box and Card - $2,850

Omega - 2220.80 · $2,850

This Omega Seamaster 300M Co-Axial measures at 41mm and features an automatic co-axial cal 2500 movement. It has a steel case on an original Omega steel bracelet and comes with double box, warranty card, manual, and watch.

Condition: Very good condition with minimal marks/hairlines
Movement: Co-axial cal 2500
Case Size: 41mm diameter
Bracelet Length: up to 7.25 inches

Posted at

Feb 2, 2026, 8:31 PM

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Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 Box and Card - $2,390

Omega - 2222.80 · $2,390

Up for sale is my Omega Seamaster 2222.80, a 36mm automatic co-axial cal 2500 movement watch in great condition.

Condition: Very good, minimal marks and hairlines on case, caseback, and bracelet.
Case size: 36mm
Movement type: co-axial cal 2500
Crystal: sapphire crystal

Posted at

Feb 2, 2026, 8:22 PM

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