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

[US] Omega Seamaster SMP300 - Blue Dial - Sedna Gold - 42mm - 210.20.42.20.03.002 - Full Set

Omega - 210.20.42.20.03.002 · $7,450

This Omega Seamaster SMP300 features a blue dial and Sedna gold case, measuring 42mm in diameter.

Condition: Fantastic condition with minor hairlines
Case size: 42mm

Posted at

Jan 18, 2026, 9:57 AM

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OMEGA SEAMASTER DIVER 300M GREEN 'SEAWEED' - 210.32.42.20.10.001 - VERY GOOD - BOX/PAPERS - XTRA NEW AM FORSTNER BRACELET

OMEGA - 210.32.42.20.10.001 · $4,621

A modern dive icon featuring a rich green ceramic dial and bezel, laser-engraved wave pattern, and OMEGA's legendary Co-Axial performance.

Condition: Very Good
Case size: 42mm diameter
Dial color: green
Bezel material: green ceramic

Posted at

Jan 18, 2026, 2:15 PM

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OMEGA Seamaster Diver 300m - 42mm - Black Dial - Ref 210.32.42.20.01.001 - Full Set

OMEGA - 210.32.42.20.01.001 · $4,400

This OMEGA Seamaster Diver 300m is a 42mm black dial watch featuring a domed scratch-resistant sapphire crystal and a self-winding movement with a power reserve of 55 hours. The watch has been worn daily for an engineering desk job.

Condition: Minor scratches from day-to-day movements, otherwise like new
Case Diameter: 42 mm
Thickness: 13.56 mm
Water Resistance: 300m / 1000 feet

Posted at

Jan 18, 2026, 12:44 PM

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OMEGA Seamaster Diver 300M 36MM - 212.30.36.20.01.002

OMEGA - 212.30.36.20.01.002 · $2,750

This 36mm OMEGA Seamaster Diver 300M is in excellent used condition with minor signs of wear.

Condition: excellent used condition with minor signs of wear
Case size: 36mm
Water resistance: 300m

Posted at

Jan 17, 2026, 7:44 PM

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Omega Seamaster Diver 300m 44mm 210.60.44.51.03.001 Blue Dial Titanium 18k Rose Gold MINT CONDITION

Omega - 210.60.44.51.03.001 · $14,250

The Omega Seamaster Diver 300m Chronograph features a laser-ablated 18k rose gold bezel paired with a high polish blue ceramic dial and chronograph complications. It has 300 meters of water resistance and is powered by Omegas Co-Axial Master Chronometer Calibre 9900.

Condition: Amazing Pre-Owned condition, showing no sings of wear, clean crystal and case.
Case size: 44mm
Movement type: Automatic (Self Winding)
Power reserve: 72hrs

Posted at

Jan 17, 2026, 3:03 PM

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OMEGA Seamaster Diver 300M "Paris 2024" Ref. 522.21.42.20.04.001 + Five Stripes "Paris 2024" NATO Strap - ULTIMATE SET! 🔥$8250🔥

OMEGA - 522.21.42.20.04.001 · $8,250

The OMEGA Seamaster Diver 300M 'Paris 2024' is a luxurious tribute to sporting excellence, featuring a 42mm case with stainless steel and 18K Moonshine Gold. The watch has a white ceramic dial, laser-structured diving scale, and custom typography on the date disc.

Condition: UNWORN
Case size: 42mm diameter
Movement: Calibre 8800 Master Chronometer
Depth rating: 300m

Posted at

Jan 16, 2026, 5:46 PM

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