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

Reference 234.30.41.21.03.001

Omega Seamaster 300 Master Chronometer Stainless Steel / Blue / Bracelet

About this watch

The Omega Seamaster 300 Master Chronometer, reference 234.30.41.21.03.001, is a stunning example of craftsmanship and precision fused into a timepiece. Its striking blue dial, crafted from high-quality stainless steel, exudes durability and elegance. The watch seamlessly transitions between casual and formal settings, making it suitable for both everyday wear and special occasions. At the core of the Seamaster 300 lies the automatic Omega Caliber 8912, featuring a chronometer and co-axial escapement for exceptional accuracy and reliability. This movement is built to last, with 38 jewels and a 60-hour power reserve. The watch's impressive water resistance of 300 meters ensures it can withstand even the most demanding underwater adventures. The Omega Seamaster 300 Master Chronometer is not just a timepiece; it's a celebration of craftsmanship, innovation, and style. Its rich history, modern features, and breathtaking design make it an investment that any watch enthusiast would be proud to own.

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MSRP: $7,100

Market Price: $4,467

Key Features

Automatic Omega Caliber 8912 movement
300 meters water resistance
41mm stainless steel case diameter
38 jewels for exceptional accuracy
60-hour power reserve for reliability
Co-axial escapement for reduced friction and increased accuracy
Chronometer certification for precision and reliability

Specifications

Brand

Omega

Family

Seamaster 300

Model

Seamaster 300 Master Chronometer Stainless Steel / Blue / Bracelet

Reference

234.30.41.21.03.001

Movement

8912

Movement Features

Hours, Minutes, Seconds
Chronometer, Co-Axial Escapement

Case

41mm

Dial Color

Blue

Crystal

Sapphire

Water Resistance

300

Current Listings

Omega Seamaster 300M - "No Time To Die" - 42mm

Omega - 210.90.42.20.01.001 · $6,700

This Omega Seamaster Diver 300M features a lightweight 42mm titanium case, matte black tropical aluminum dial and bezel, and vintage-inspired details throughout.

Condition: Very good overall
Case size: 42mm diameter
Case material: Titanium
Movement type: Co-Axial Master Chronometer Calibre 8806

Posted at

Jan 15, 2026, 6:42 PM

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2023 Omega Seamaster 300M Seaweed 210.30.42.20.10.001 Full Set

Omega - 210.30.42.20.10.001 · $5,000

The watch is an Omega Seamaster 300M with a green dial, chronometer, date display, helium escape valve, rotating bezel, and transparent caseback.

Condition: really good condition
Movement: Omega 8800
Power reserve: 55 hours
Crystal type: Sapphire crystal

Posted at

Jan 14, 2026, 6:57 PM

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Omega Seamaster 300M Seaweed 210.30.42.20.10.001 Full Set

Omega - 210.30.42.20.10.001

Posted at

Jan 14, 2026, 6:51 PM

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2015 Steel Omega Seamaster 300M 212.30.41.20.01.003

Omega - 212.30.41.20.01.003 · $3,600

2015 Omega Seamaster 300M, black dial on a steel bracelet with features including self-winding mechanical movement and date display.

Condition: Good condition
Case diameter: 41mm
Movement caliber: Omega 2500
Power reserve: 48 hours

Posted at

Jan 14, 2026, 6:40 PM

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2024 Omega Seamaster 300M 234.30.41.20.01.001

Omega - 234.30.41.21.01.001 · $5,300

The Omega Seamaster 300M features a black dial, screw-in crown with time zone function, and unidirectional rotating bezel.

Condition: excellent condition
Case Diameter: 41 MM
Dial Color: black
Movement: Omega 8912

Posted at

Jan 14, 2026, 6:34 PM

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Omega Seamaster 300M Beijing Olympics - $3750

Omega - 522.30.42.20.03.001 · $3,750

Omega Seamaster 300m Master Co-axial 42 Beijing 2022 Olympic Winter games, sized for a 7.1 in wrist, comes with limited edition box.

Condition: Preowned, in great condition
Size: 42mm diameter
Water Resistance: 300m depth rating

Posted at

Jan 14, 2026, 7:48 AM

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Omega Seamaster 300M Co-Axial Mid-size 2220.80 Box and Card - $2,850 - Reserved for u/hachoopoo

Omega - 2220.80 · $2,850

A mid-size Omega Seamaster 300M Co-Axial watch with a 41mm steel case and automatic co-axial cal 2500 movement. The watch features a sapphire crystal and comes with an original Omega steel bracelet.

Condition: Excellent condition with minimal marks/hairlines
Case size: 41mm diameter
Movement: automatic co-axial cal 2500
Bracelet length: fits up to 7-7.25 inch wrists depending on wrist shape

Posted at

Jan 13, 2026, 11:01 PM

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Omega Seamaster 300 Steel Pumpkin Patina Lollipop Hand (Unpolished/Serviced)

Omega - 300 · $10,500

Condition: unpolished/serviced
Case material: steel
Patina type: pumpkin

Posted at

Jan 13, 2026, 5:20 PM

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Omega Seamaster 300M "Seaweed" Green Wave Dial on OEM Mesh! 210.32.42.20.10.001

Omega - 210.32.42.20.10.001 · $5,395

The Omega Seamaster Diver 300M 'Seaweed' features a rare and striking color combination, powered by the Caliber 8800 movement and water-resistant up to 300 meters.

Condition: Excellent preowned condition
Movement: Caliber 8800
Power reserve: up to 55 hours
Water resistance: up to 300 meters

Posted at

Jan 13, 2026, 11:31 AM

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