Omega Seamaster Diver 300m Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Sedna Gold / Blue / Bracelet

Reference 210.20.42.20.03.002

Omega Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Sedna Gold / Blue / Bracelet

About this watch

The Omega Seamaster Diver 300M Master Co-Axial 42 is an exceptional watch that successfully merges style, functionality, and durability. Its stunning blue dial with Sedna gold accents is reminiscent of the deep ocean, while its robust stainless steel case and ceramic bezel provide a durable and scratch-resistant exterior. At the heart of this luxury timepiece lies the Omega caliber 8800, a self-winding movement featuring a Co-Axial escapement that increases accuracy and reduces friction. With a power reserve of 55 hours, Master Chronometer certification, and resistance to magnetic fields up to 15,000 gauss, this watch is both precise and reliable. The Seamaster Diver 300M boasts an impressive water resistance of 300m, making it perfect for diving or everyday wear. Whether you're an avid diver or simply appreciate fine craftsmanship, this watch is sure to impress with its versatility, style, and luxury appeal.

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MSRP: $12,700

Market Price: $7,610

Key Features

42mm Stainless Steel Case
Sapphire Crystal Glass
300m Water Resistance
Master Chronometer Certification
Omega Caliber 8800 Movement
Co-Axial Escapement
55-Hour Power Reserve

Specifications

Brand

Omega

Family

Seamaster Diver 300m

Model

Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Sedna Gold / Blue / Bracelet

Reference

210.20.42.20.03.002

Movement

8800

Movement Features

Hours, Minutes, Seconds
Date
Chronometer, Co-Axial Escapement

Case

42mm

Dial Color

Blue

Crystal

Sapphire

Water Resistance

300

Current Listings

[WTS] 🏒🥅🚨 2025 Omega Seamaster Diver 300M Co-Axial Master Chronometer — Matte Black No-Date Dial, Orange Accents, Steel Mesh Bracelet — Full Set — Ref. 210.30.42.20.01.018

🏒🥅🚨 2025 Omega Seamaster Diver 300M Co-Axial Master Chronometer — Matte Black No-Date Dial, Orange Accents, Steel Mesh Bracelet — Full Set — Ref. 210.30.42.20.01.018

Omega - 210.30.42.20.01.018 · $6,650

The 2025 Omega Seamaster Diver 300M takes the classic 300M formula and gives it a stealthy, modern twist with a matte black no-date dial, crisp orange accents, and a brushed steel mesh bracelet.

Condition: Very good condition
Case size: 42mm
Water resistance: 300m
Movement certification: METAS-certified Master Chronometer performance

Posted at

Apr 21, 2026, 10:25 PM

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2024 Omega Seamaster Diver 300M 210.30.42.20.10.001 Green Seaweed Full Set - $5,395

Omega - 210.30.42.20.10.001 · $5,395

Up for sale is a Omega Seamaster Diver 300m Green Seaweed, a watch from the 2024 collection.

Condition: Excellent condition with minimal signs of wear
Year: 2024
Case Size: 42mm
Water Resistance: 300m

Posted at

Apr 21, 2026, 12:03 PM

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Omega Seamaster Diver 300M 41mm 212.30.41.20.01.002 | 2019 Box and Papers

Omega - 212.30.41.20.01.002 · $3,450

A 2019 Omega Seamaster Diver 300M in 41mm size, including original box and papers.

Condition: Great Pre-Owned with minor defects (crystal chip)
Case Size: 41mm
Links: 11.5

Posted at

Apr 20, 2026, 9:49 PM

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Omega Seamaster Diver 300M, 2020, 42mm, 210.32.42.20.03.001, Full set

Omega - 210.32.42.20.03.001 · $6,200

Case diameter: 42mm

Posted at

Apr 20, 2026, 8:55 AM

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OMEGA Seamaster Diver 300M 210.32.42.20.04.001 Box And Papers+ Original Receipt $4300+ 🏷️

OMEGA - 210.32.42.20.04.001 · $4,300

The Omega Seamaster Diver 300M is a 42mm watch featuring a white dial with waves, 300 meter water resistance, and an 8800 movement.

Condition: Excellent, small scratches on bezel groove
Case size: 42mm
Water resistance: 300m
Movement: 8800

Posted at

Apr 19, 2026, 9:31 PM

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Omega SMP 300 Seamaster Diver 300M America's Cup on Rubber Strap 210.32.42.20.04.002

Omega - 210.32.42.20.04.002 · $4,900

A Omega Seamaster Diver 300M America's Cup on a rubber strap with a red tipped hand and full deployment buckle.

Condition: Excellent condition
Strap material: rubber

Posted at

Apr 19, 2026, 7:33 PM

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2025 OMEGA Seamaster Diver 300m 210.32.42.20.01.001 42mm Stainless Steel COMPLETE SET w/ Extra Strap

OMEGA - 210.32.42.20.01.001 · $4,950

The OMEGA Seamaster Diver 300m is a popular dive watch with a 42mm stainless steel case and black wave dial. It features a black ceramic bezel and comes with two strap options. The watch is powered by OMEGA's in-house coaxial movement, offering 55 hours of power reserve.

Condition: Excellent 'Like New' Condition
Case size: 42mm
Case material: Stainless Steel
Bezel material: Black Ceramic

Posted at

Apr 19, 2026, 4:48 PM

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Omega Seamaster Diver 300M James Bond 60th Anniversary 210.30.42.20.03.002 $6,999

Omega - 210.30.42.20.03.002 · $6,999

This Omega Seamaster Diver 300M is a special edition celebrating the James Bond 60th Anniversary, featuring a reliable Omega Calibre 8806 and COSC and METAS certifications.

Condition: Preowned - Excellent
Case size: 42mm
Movement: Omega Calibre 8806
Water resistance: 300m

Posted at

Apr 19, 2026, 10:06 AM

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