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

Reference 234.30.41.21.03.002

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

About this watch

The Omega Seamaster 300 Master Chronometer 234.30.41.21.03.002 is a masterpiece of luxury watchmaking, boasting a stunning Summer Blue gradient dial that exudes freshness and vibrancy. The round case measures 41.00 mm in diameter and 13.85 mm in height, striking a perfect balance between masculinity and elegance. Crafted from high-grade stainless steel and featuring a ceramic bezel, this watch is built to withstand the rigors of underwater adventures as well as everyday wear. The sapphire crystal provides scratch resistance and clarity that's hard to beat. With its impressive 300 meters of water resistance, this timepiece is a reliable companion for serious divers and water sports enthusiasts alike. At the heart of this masterpiece lies the Omega caliber 8912, an automatic movement that ensures accuracy and reliability with a 60-hour power reserve and a frequency of 25,200 vibrations per hour. METAS-certified, it meets the highest standards of precision and performance. The mixed indexes and arrow hands ensure readability at a glance, even in low light conditions. Whether you're diving into the ocean or diving into your daily routine, this watch is a reliable companion that can handle it all.

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MSRP: $7,400

Market Price: $5,510

Key Features

Striking Summer Blue gradient dial
Robust and durable materials (stainless steel, ceramic bezel)
High water resistance (300m)
METAS-certified movement for accuracy
Versatile for both casual and formal wear

Specifications

Brand

Omega

Family

Seamaster 300

Model

Seamaster 300 Master Chronometer Stainless Steel / Summer Blue / Bracelet

Reference

234.30.41.21.03.002

Movement

8912

Movement Features

Hours, Minutes, Seconds
Chronometer, Co-Axial Escapement

Case

41mm

Dial Color

Blue

Crystal

Sapphire

Water Resistance

300

Current Listings

2024 Omega Seamaster 300 Summer blue 41mm 234.30.41.21.02.002 Full Set Excellent

Omega - 234.30.41.21.03.002 · $5,997

Part of Omega’s 75th Anniversary Summer Blue Collection, this watch features a vintage-inspired architecture with a unique varnished dial and deeper tone bezel.

Condition: Excellent
Case Diameter: 41mm
Collection: Summer Blue

Posted at

May 1, 2026, 2:50 PM

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Omega Seamaster 300m ‘Mid-Size’ - 2008

Omega - 255280 · $2,850

a used Omega Seamaster 300m 'Mid-Size' from 2008, available for sale with additional details on the seller's website.

Country Of Origin: New Zealand
Shipping Costs: $60 NZD worldwide, free within New Zealand & Australia

Posted at

May 13, 2026, 1:46 AM

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Omega Seamaster 300 Heritage 234.30.41.21.01.001 Full Set (2022) – Very Good Condition

Omega - 234.30.41.21.01.001 · $4,750

This Omega Seamaster 300 Heritage features a classic vintage-inspired design with a black dial and Omega's in-house Co-Axial Master Chronometer movement.

Condition: Very good condition
Movement: in-house Co-Axial Master Chronometer
Bracelet Condition: light cosmetic wear consistent with normal use

Posted at

May 12, 2026, 11:05 PM

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OMEGA Seamaster 300 Full kit w/ Extra leather straps

Omega - 233.30.41.21.01.001 · $3,800

This Omega Seamaster 300 Master Co-axial Chronometer is a mechanical automatic watch featuring a black dial and domed sapphire crystal with anti-reflective treatment. It comes in a steel case with a 41mm diameter and has a water resistance of 300m.

Condition: Slight wear on bracelet, clasp, and case
Movement: Omega 8400
Power reserve: 60 hours
Case size: 41mm diameter

Posted at

May 12, 2026, 4:53 PM

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Omega Seamaster 300

Omega - 234.30.41.21.03.001 · $4,800

A beautiful Omega Seamaster 300 with a striking blue dial and classic design cues, featuring a Cal 8912 Co-Axial movement.

Condition: very good
Movement: Cal 8912 Co-Axial
Size: 41mm diameter

Posted at

May 11, 2026, 9:28 PM

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Omega Seamaster 300 Heritage 234.30.41.21.01.001

Omega - 234.30.41.21.01.001 · $4,400

A Omega Seamaster 300 Heritage in good condition, complete with box and manual.

Case size: 41mm diameter
Shipping: Fedex with insurance

Posted at

May 9, 2026, 12:36 PM

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Omega Seamaster 300 - Stainless Steel - Chronograph - 41mm - Blue Wave Dial - 2598.80

Omega - 2598.80 · $1,900

This is a vintage Omega Seamaster Chronograph with a stainless steel case and blue wave dial, featuring a 41mm diameter.

Condition: Very clean for its age
Bracelet size range: fits 7-7.5 inches wrist
Crown type: aftermarket crown

Posted at

May 9, 2026, 11:21 AM

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OMEGA Seamaster 300 Full Kit

Omega - 233.30.41.21.01.001 · $3,990

The Omega Seamaster 300 is a mechanical automatic watch with a black dial and 41mm steel case, featuring a domed sapphire crystal and 60-hour power reserve. It includes a full kit with extra leather straps and comes with the original box and papers. The watch has been recently purchased on Chrono24.

Condition: Slight wear on bracelet, clasp, and case
Case size: 41mm diameter
Movement caliber: Omega 8400
Power reserve: 60 hours

Posted at

May 9, 2026, 8:59 AM

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