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 Co-Axial 41mm 2220.80 Box and Card - $2,890

Omega - 2220.80 · $2,890

Up for sale is my Omega Seamaster 2220.80, a 41mm automatic co-axial cal 2500 movement watch with a steel case and original Omega steel bracelet.

Condition: 8.9/10, great condition with minimal marks/hairlines
Case size: 41mm diameter
Movement: automatic co-axial cal 2500
Bracelet fit: up to 7.25 inch wrists depending on wrist shape

Posted at

Apr 14, 2026, 4:34 AM

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Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,250

Omega - 2222.80 · $2,250

Up for sale is my very good Omega Seamaster 2222.80, which measures at 36mm and features an automatic co-axial cal 2500 movement.

Condition: Very good (8.9/10)
Case size: 36mm
Bracelet length: fits up to 7-7.25 inch wrists
Shipping duration: 3-5 days globally

Posted at

Apr 14, 2026, 4:29 AM

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Omega Seamaster 300M Tokyo Olympics Limited Edition - Full set

Omega - Seamaster 300M Tokyo Olympics Limited Edition · $5,998

The official watch used to keep time for the 2020 Tokyo Olympics, featuring a 42mm case with an electric blue bezel and white waved dial.

Condition: great pre-owned condition with very little signs of wear
Case size: 42mm
Bracelet type: sleek bracelet

Posted at

Apr 13, 2026, 7:48 PM

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Omega Seamaster 300 James Bond No Time To Die NTTD 210.90.42.20.01.001 ( new / 2025 / box and papers )

Omega - 210.90.42.20.01.001 · $8,850

A limited edition Omega Seamaster 300 James Bond No Time To Die watch with a 42mm titanium case, available for sale complete with all original boxes and papers.

Condition: Brand new
Case size: 42mm diameter
Material: titanium

Posted at

Apr 13, 2026, 1:28 PM

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Omega Seamaster 300M James Bond 60th Anniversary 210.30.42.20.03.002 ( new / 2025 / box and papers )

Omega - 210.30.42.20.03.002 · $7,995

This Omega Seamaster 300M is a James Bond 60th Anniversary edition, coming in a stainless steel case with the Calibre 8806.

Condition: Brand new
Case size: 42mm diameter
Water resistance: 300m

Posted at

Apr 13, 2026, 1:24 PM

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1968 Omega Seamaster 300 166.024 Restored (WatchCo Style)

Omega - 166.024 · $6,950

A 1968 Omega Seamaster 300 Ref. 166.024 that has been restored to its original glory, featuring a striking resemblance to the Watchco Seamaster but with a better pedigree.

Condition: Restored
Bracelet: 1116 (predecessor to modern Speedmaster bracelet)
Water Resistance: Not water resistant

Posted at

Apr 12, 2026, 10:31 PM

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Omega Seamaster 300M Blue No Wave 212.30.41.20.03.001 (2017) Full Set

Omega - 212.30.41.20.03.001 · $3,395

This is a clean and modern take on the classic Omega Seamaster Diver 300M, featuring a no-wave blue dial and aluminum bezel. It's a great everyday diver with strong wrist presence and proven reliability.

Condition: Good preowned condition with minor signs of use throughout
Case size: 41mm diameter
Movement: Automatic
Dial: Blue (no wave)

Posted at

Apr 12, 2026, 9:38 PM

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Omega Seamaster 300m. Box, Cards. 210.30.42.20.06.001

Omega - 210.30.42.20.06.001 · $3,750

A Omega Seamaster 300m with box and cards is being sold.

Box: yes
Cards: yes

Posted at

Apr 11, 2026, 11:03 AM

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Omega Seamaster 300M Two-Tone White Wave – Full Size Automatic (Rare Config) – $3,200

Omega - 300M Two-Tone White Wave · $3,200

This Omega Seamaster 300M features a full-size ~41mm case, white wave dial, and two-tone steel + yellow gold. It is an early 90s model, running well and in great condition.

Condition: Running well, with light wear consistent with age
Case size: ~41mm
Movement: cal. 1109 Automatic

Posted at

Apr 10, 2026, 9:37 PM

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