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

Reference 210.20.42.20.03.001

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

About this watch

The Omega Seamaster Diver 300M Master Co-Axial 42 is a masterpiece of luxury watchmaking, blending precision with elegance. This stunning timepiece is not just a statement; it's a piece of art and a marvel of engineering. With its captivating blue dial, sunburst finish, and classic yet sporty aesthetic, this watch is sure to cast a spell on anyone who gazes at it. The round stainless steel case feels substantial without being overwhelming, while the rotating bezel, designed for divers, features a 0-60 scale crafted from blue ceramic. The open case back allows you to admire the intricate workings of the Omega caliber 8800 movement, a self-winding masterpiece that exemplifies precision and reliability. With its Co-Axial escapement resistant to magnetic fields up to 15,000 gauss, this watch is like having a personal bodyguard for your timekeeping needs. The Seamaster Diver 300M has undergone rigorous testing in accordance with the Master Chronometer certification process approved by METAS, meeting the highest standards of precision, performance, and magnetic resistance. Whether you're snorkeling in the Caribbean or exploring the depths of the Pacific, this watch is your loyal companion, built for serious divers and ocean enthusiasts.
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MSRP: $12,700
Market Price: $7,154

Key Features

  • Omega caliber 8800 movement with Co-Axial escapement
  • Water Resistance up to 300 meters
  • Scratch-resistant sapphire glass
  • Rotating bezel with blue ceramic
  • Stainless Steel / Yellow Gold / Blue Ceramic construction

Specifications

Brand
Omega
Family
Seamaster Diver 300m
Model
Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Yellow Gold / Blue / Bracelet
Reference
210.20.42.20.03.001
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] OMEGA Seamaster Diver 300M Master Chronometer Steel/Gold 210.20.44.51.03.001

OMEGA Seamaster Diver 300M Master Chronometer Steel/Gold 210.20.44.51.03.001

OMEGA - 210.20.44.51.03.001 · $9,450
The Omega Seamaster is a great watch to begin with, featuring a chronograph and blue dial in a two-tone case and bracelet.

  • Case material: steel/gold
  • Bracelet: two-tone
  • Dial color: blue
Posted at
Apr 24, 2026, 8:36 AM
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[WTS] 2024 Omega Seamaster Diver 300M 210.30.42.20.10.001 Green Seaweed Full Set - $5,395

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
2024 Omega Seamaster Diver 300M in Green Seaweed, a collection of the latest dive watch from Omega.

  • Color: Green Seaweed
Posted at
Apr 23, 2026, 3:26 PM
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[WTS] Omega Seamaster Diver 300M 41mm 212.30.41.20.03.001 | 2018 Box and Papers

Omega Seamaster Diver 300M 41mm 212.30.41.20.03.001 | 2018 Box and Papers

Omega - 212.30.41.20.03.001 · $3,550
This Omega Seamaster Diver 300M is a 2018 model with its original box and papers, featuring an excellent pre-owned condition.

  • Condition: Excellent Pre-Owned
  • Contents: 11.5 links, 2018 warranty card, box, new style box and manual set, no serial tag
  • Links: 11.5
Posted at
Apr 23, 2026, 12:22 PM
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[WTS] Omega Seamaster Diver 300M 210.30.42.20.04.001 – Full Set

Omega Seamaster Diver 300M 210.30.42.20.04.001 – Full Set

Omega - 210.30.42.20.04.001 · $4,650
This Omega Seamaster Diver 300M features a steel case, black ceramic bezel with white enamel diving scale, and a polished white ceramic laser-engraved wave dial. It has a Caliber 8800 Master Chronometer movement, helium escape valve, and 300m water resistance.

  • Condition: Good, with light wear from normal use
  • Case size: 42mm diameter
  • Water resistance: 300m depth rating
  • Movement: Caliber 8800 Master Chronometer
Posted at
Apr 22, 2026, 11:32 AM
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[WTS] 🏒🥅🚨 2026 Omega Seamaster Diver 300M Co-Axial Master Chronometer — Unworn, Brushed Grey Wave Dial, Titanium Bezel, Grey Rubber Strap — Ref. 210.32.42.20.06.002

🏒🥅🚨 2026 Omega Seamaster Diver 300M Co-Axial Master Chronometer — Unworn, Brushed Grey Wave Dial, Titanium Bezel, Grey Rubber Strap — Ref. 210.32.42.20.06.002

Omega - 210.32.42.20.06.002 · $6,250
A stealthy, technical take on the classic Diver 300M line with a brushed grey dial and titanium bezel, featuring Master Chronometer performance and 300m water resistance.

  • Condition: Unworn
  • Case size: 42mm
  • Water resistance: 300m
  • Bezel material: Grade 5 titanium
Posted at
Apr 21, 2026, 10:42 PM
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[WTS] Omega Seamaster Diver 300M Titanium Bronze Gold Green Dial | Ref. 210.90.42.20.10.001 | Full Set | $9,850

Omega Seamaster Diver 300M Titanium Bronze Gold Green Dial | Ref. 210.90.42.20.10.001 | Full Set | $9,850

Omega - 210.90.42.20.10.001 · $9,850
The Omega Seamaster Diver 300M in Grade 2 Titanium and exclusive OMEGA Bronze Gold is a visually striking configuration with a unique combination of a deep sandblasted green dial against warm Bronze Gold accents. This watch is exceptionally lightweight and delivers a rich, warm-toned aesthetic. It comes with an extra rubber strap for a sportier, lighter wear option.

  • Condition: Pre-owned, excellent condition, minimal wear, green dial and bezel pristine
  • Case Size: 42mm diameter
  • Bracelet Type: Original titanium brushed Milanese mesh bracelet
  • Water Resistance: 300m / 984ft
Posted at
Apr 21, 2026, 10:37 PM
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[WTS] 🏒🥅🚨 2026 Omega Seamaster Diver 300M Co-Axial Master Chronometer — Unworn, White Wave Dial, Ceramic Bezel — Full Set — Ref. 210.30.42.20.04.001

🏒🥅🚨 2026 Omega Seamaster Diver 300M Co-Axial Master Chronometer — Unworn, White Wave Dial, Ceramic Bezel — Full Set — Ref. 210.30.42.20.04.001

Omega - 210.30.42.20.04.001 · $6,150
The 2026 Omega Seamaster Diver 300M in white dial configuration delivers the modern Bond-era Seamaster design with a fresh, high-contrast look that wears brilliantly in any light. The 42 mm stainless steel case and laser-engraved white wave dial create a sharp, contemporary diver aesthetic.

  • Condition: Unworn
  • Case size: 42 mm
  • Movement: Master Chronometer movement
  • Bezel material: Ceramic
Posted at
Apr 21, 2026, 10:33 PM
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[WTS] Omega Seamaster Diver 300M “No Time To Die” 007 Edition Titanium | Ref. 210.90.42.20.01.001 | Full Set | $8500

Omega Seamaster Diver 300M “No Time To Die” 007 Edition Titanium | Ref. 210.90.42.20.01.001 | Full Set | $8500

Omega - 210.90.42.20.01.001 · $8,500
The Omega Seamaster Diver 300M 'No Time To Die' James Bond edition features a titanium case and brown/khaki dial with a unique 'Broad Arrow' detail.

  • Condition: Pre-owned, worn lightly with minimal signs of wear on bracelet
  • Case size: 42mm
  • Bracelet material: Grade 2 Titanium
  • Dial color: Brown/khaki
Posted at
Apr 21, 2026, 10:31 PM
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[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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