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

Reference 210.30.42.20.03.003

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

About this watch

The Omega Seamaster Diver 300M Master Co-Axial 42 is a masterpiece of engineering and design, blending elegance with robust functionality. Its stunning summer blue dial features a gradient finish, adding depth and character to the watch face. The case is crafted from stainless steel and ceramic, built to withstand underwater adventures. A rotating bezel allows for accurate dive time tracking, and a water resistance of up to 300 meters ensures it can endure ocean depths. At its heart lies the Omega caliber 8800 movement, a marvel of engineering with Co-Axial escapement, reducing friction and enhancing longevity and accuracy. Rigorously tested according to Master Chronometer certification, this watch is resistant to magnetic fields reaching 15,000 gauss and has a power reserve of 55 hours. The Seamaster Diver 300M comes with a stainless steel bracelet that complements the watch's aesthetics while providing a comfortable fit. Its versatility makes it suitable for various environments, from diving to formal events.

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MSRP: $6,300

Market Price: $4,986

Key Features

Stainless Steel and Ceramic Case
Summer Blue Gradient Dial
Omega Caliber 8800 Movement
300m Water Resistance
Co-Axial Escapement
Master Chronometer Certified
55 Hour Power Reserve

Specifications

Brand

Omega

Family

Seamaster Diver 300m

Model

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

Reference

210.30.42.20.03.003

Movement

8800

Movement Features

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

Case

42mm

Dial Color

Blue

Crystal

Sapphire

Water Resistance

300

Current Listings

Omega Seamaster Diver 300M - 2020 - 210.30.42.20.01.001 - $4100 plus label

Omega - 210.30.42.20.01.001 · $4,100

This Omega Seamaster Diver 300M is a professional diver's watch with notable wear on the bracelet and visible wear on the crystal.

Condition: Pre-owned, wear on the bracelet and crystal
Depth rating: 300m

Posted at

Dec 17, 2025, 10:01 PM

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2024 Omega Seamaster Diver 300M 42mm Steel Blue Dial 210.30.42.20.03.001 Full Set

Omega - 210.30.42.20.03.001 · $4,315

The 2024 Omega Seamaster Diver 300M features a stainless steel case, blue ceramic dial, and rotating dive bezel. It comes in a 42mm size, suitable for wrists up to 8.5 inches.

Condition: nice preowned condition with some light scratches
Case material: stainless steel
Case dimensions: 42mm diameter
Band material: stainless steel

Posted at

Dec 17, 2025, 8:02 PM

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Omega Seamaster Diver 300M Black Dial - 210.32.42.20.01.001 - Full Kit!

Omega - 210.32.42.20.01.001 · $3,895

Omega Seamaster Diver 300M with a black dial and rubber strap, featuring a 42mm case size.

Condition: Overall great condition, light hairlines on case and clasp, small crack on the pip
Case Size: 42mm
Bezel Material: ceramic

Posted at

Dec 17, 2025, 4:45 PM

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Omega Seamaster Diver 300M Chronograph 210.62.44.51.01.001 18k Sedna Gold B/P!

Omega - 210.62.44.51.01.001 · $18,500

This Sedna Gold Omega Seamaster Chronograph features a black ceramic bezel and is described as absolutely stunning, with a comfortable yet exciting feel on the wrist.

Case materials: Sedna Gold
Bezel material: black ceramic

Posted at

Dec 17, 2025, 8:30 AM

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Omega Seamaster Diver 300M Sedna Gold Bezel | Ref. 210.22.42.20.01.001| Full Set | 2024 | Excellent Condition

Omega - 210.22.42.20.01.001 · $6,250

A 42mm two-tone Omega Seamaster Diver 300M featuring a sleek black ceramic dial and matching bezel, powered by the Co-Axial Master Chronometer Caliber 8800.

Condition: Excellent pre-owned condition
Case size: 42mm
Material: Stainless steel and 18K yellow gold
Dial color: Black ceramic wave-pattern

Posted at

Dec 16, 2025, 10:59 PM

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Omega Seamaster Diver 300M Black Ceramic (210.92.44.20.01.003)

Omega - 210.92.44.20.01.003 · $6,500

This Omega Seamaster Diver 300M Black Ceramic watch features a 44mm size and is in excellent condition, complete with a triple boxed set and various documentation.

Condition: Excellent
Size: 44mm diameter
Depth rating: 30 bar (300m)
Movement: Master Chronometer

Posted at

Mar 26, 2025, 3:22 PM

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2025 NEW UNWORN Omega Seamaster Diver 300M White Ceramic 210.32.42.20.04.001

Omega - 210.32.42.20.04.001 · $4,780

This 2025 Omega Seamaster Diver 300M features a white ceramic dial with wave patterns, a stainless steel case with brushed and high-polished finish surfaces, and a black ceramic unidirectional bezel with a white enamel diving scale. It offers enhanced functionality for divers, including precise tracking of dive time.

Condition: Brand new, unworn
Case material: stainless steel
Case size: 42MM
Bezel type: black ceramic, unidirectional

Posted at

Mar 25, 2025, 8:27 PM

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MINT Omega SEAMASTER DIVER 300M GREEN WAVE DIAL BRACELET 2025 WARRANTY FULL SET

Omega - 210.30.42.20.10.001 · $4,375

A 2025 Omega Seamaster Diver 300m in 42mm stainless steel with a green ceramic bezel and wave dial. The watch features an Omega Co-Axial Master Chronometer 8800 automatic movement.

Condition: Mint, Unpolished Condition
Movement: Omega Co-Axial Master Chronometer 8800 Automatic
Case size: 42mm diameter
Bezel material: Green Ceramic

Posted at

Mar 19, 2025, 10:32 PM

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