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 Rubber Strap & Bond Nato

Posted at

Mar 2, 2026, 11:09 PM

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Omega Seamaster Diver 300M "Daniel Craig" with MESH BRACELET SIZE S

Omega - 210.30.42.20.01.010 · $5,800

Up for sale is the Omega Seamaster Diver 300M 'Daniel Craig' with a black dial and wave design. It features a steel case, domed sapphire crystal, and a self-winding movement with a power reserve of 55 hours.

Condition: Brand new, barely worn
Case diameter: 42mm
Thickness: 13.80mm
Water resistance: 300m depth rating

Posted at

Mar 1, 2026, 2:26 PM

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Omega Seamaster Diver 300M Blue on Bracelet + OEM strap - Box & Papers - Great Condition - December 2024 - REPOST/REDUCED

Omega - 210.30.42.20.03.001 · $4,200

This Omega Seamaster Diver 300M Blue on Bracelet is a 42mm watch that comes with an authentic OEM rubber strap in blue and is under warranty through December 2029.

Condition: Great Condition, minor scuffs on the clasp and case
Bracelet condition: plenty of hairline scratches along with minor/shallow scuffs on the clasp
Case condition: minor scuffs
Crystal condition: flawless

Posted at

Mar 1, 2026, 2:17 PM

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Omega Seamaster Diver 300M 42mm Full Box & Papers Complete Set (210.32.42.20.01.001)

Omega - 210.32.42.20.01.001 · $4,550

A Omega Seamaster Diver 300m in black on a black dial, featuring a 42mm case size.

Condition: very good condition
Case Size: 42mm

Posted at

Mar 1, 2026, 11:56 AM

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Omega Seamaster Diver 300M – James Bond 60th Anniversary – Complete – Unworn

Omega - 21030422003002 · $7,250

A James Bond 60th Anniversary edition Omega Seamaster Diver 300M with a blue wave dial, animated caseback, and mesh bracelet.

Condition: Unworn
Movement: co-axial master chronometer Calibre 8806
Water Resistance: 300m
Case Size: 42mm

Posted at

Feb 28, 2026, 2:13 PM

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Omega Seamaster Diver 300M - White Dial - Full Kit

Omega - 210.30.42.20.04.001 · $4,000

Up for sale is my Omega Seamaster 300M, a diver's watch with a white dial. It has accumulated some scratches over the years but all functions seem to be operating normally.

Condition: Pre-owned with scratches on the case and bracelet
Year purchased: 2021
Warranty: International Warranty
Depth rating: 300m

Posted at

Feb 27, 2026, 6:39 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! 🔥$7,900🔥

OMEGA - 522.21.42.20.04.001 · $7,900

A luxurious tribute to sporting excellence, the Seamaster Diver 300M 'Paris 2024' features a stainless steel and 18K Moonshine Gold case with a laser-structured diving scale and a white ceramic dial.

Condition: UNWORN
Case size: 42mm
Movement: Calibre 8800 Master Chronometer
Water resistance: 300m

Posted at

Feb 26, 2026, 9:08 PM

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2018 Omega Seamaster Diver 300M Commander's Watch - REF 212.32.41.20.04.001

Omega - 212.32.41.20.04.001 · $5,695

This 2018 Omega Seamaster Diver 300M Commander's Watch features a stainless steel case and is in excellent condition with little to no wear.

Condition: Great pre-owned condition
Box and papers: Yes
Warranty card date: 06/2018
Shipping insured: Yes

Posted at

Feb 26, 2026, 12:02 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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