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

Reference 210.30.42.20.03.001

About this watch

The Omega Seamaster Diver 300M Master Co-Axial 42 is a masterpiece of watchmaking, boasting a robust 42mm stainless steel case, blue ceramic bezel with rotating 0-60 scale, and stunning blue dial with wave pattern. Protected by sapphire crystal, this timepiece showcases the intricate Omega caliber 8800 movement, featuring Co-Axial escapement and Master Chronometer certification for exceptional accuracy and resilience against magnetic fields up to 15,000 gauss.
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MSRP: $5,900
Market Price: $3,806

Key Features

  • 42mm stainless steel case
  • Blue ceramic bezel with rotating 0-60 scale
  • Stunning blue dial with wave pattern
  • Sapphire crystal protection
  • Omega caliber 8800 movement
  • Co-Axial escapement
  • Master Chronometer certification
  • Water resistance up to 300 meters

Specifications

Brand
Omega
Family
Seamaster Diver 300m
Model
Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Blue / Bracelet
Reference
210.30.42.20.03.001
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 Blue on Bracelet + OEM strap - Box & Papers - Great Condition - December 2024 - REPOST/REDUCED

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

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
Active
Omega Seamaster Professional 300m Diver Blue Dial/Bezel

Omega Seamaster Professional 300m Diver Blue Dial/Bezel

This Omega Seamaster Professional is a 42mm diver's watch with a blue ceramic dial and bezel, featuring an automatic movement with a 55-hour power reserve.

  • Condition: Excellent
  • Case size: 42mm diameter
  • Thickness: 14mm
  • Lug width: 20mm
Posted at
Apr 6, 2025, 8:49 AM
Active
Omega Seamaster 300M - Blue Dial - 210.30.42.20.03.001 (excellent / complete)

Omega Seamaster 300M - Blue Dial - 210.30.42.20.03.001 (excellent / complete)

This Omega Seamaster 300M features a 42mm stainless steel case with a blue dial and bezel, powered by the Master Co-Axial Movement.

  • Condition: Excellent / Complete Set
  • Case size: 42mm diameter
  • Movement type: Master Co-Axial
Posted at
Mar 25, 2025, 3:13 PM
Active
Omega Seamaster 300M - Blue Dial - 210.30.42.20.03.001 ( excellent / 2024 )

Omega Seamaster 300M - Blue Dial - 210.30.42.20.03.001 ( excellent / 2024 )

This Omega Seamaster 300 is a Master Chronometer with a 42mm stainless steel case, featuring a blue dial and bezel on a bracelet.

  • Condition: Excellent
  • Movement: 8800 Master Co-Axial Movement
  • Case size: 42mm diameter
  • Shipping options: Fedex Express within the US, International Shipping adds $150
Posted at
Feb 6, 2025, 3:27 PM
Active
Omega Seamaster 300M Blue 42MM - Ref 210.30.42.20.03.001 (2022 LIKE NEW COMPLETE)

Omega Seamaster 300M Blue 42MM - Ref 210.30.42.20.03.001 (2022 LIKE NEW COMPLETE)

A 42MM Omega Seamaster 300M Blue with all functions working properly and included accessories.

  • Condition: Like new, worn less than a handful of times
  • Box And Papers: Complete box and papers, dated May 2022
  • Included Accessories: Outer sleeve, outer box, inner box, instruction manual, serialized hangtag, dust bag
Posted at
Jan 29, 2025, 4:58 PM
Active
[WTS] 2022 Omega Seamaster Diver 300m Blue Dial on Blue Strap Two Tone 18K Yellow Gold 210.22.42.20.03.001

2022 Omega Seamaster Diver 300m Blue Dial on Blue Strap Two Tone 18K Yellow Gold 210.22.42.20.03.001

A great-looking piece that blends sporty style with a touch of luxury thanks to its deep blue wave dial and 18K yellow gold accents.

  • Condition: Excellent condition with very little signs of wear
  • Movement: Self-winding Mechanical
  • Case material: Stainless Steel
  • Bezel materials: Blue Ceramic, Steel, Yellow Gold
Posted at
Mar 14, 2026, 4:19 PM
Active
[WTS] 2022 Omega Seamaster Diver 300M 42mm 210.32.42.20.06.001 Full Set Mint

2022 Omega Seamaster Diver 300M 42mm 210.32.42.20.06.001 Full Set Mint

A modern, high-performance dive watch with iconic Seamaster styling, featuring a grey wave dial, blue ceramic bezel and blue rubber strap.

  • Condition: Mint
  • Year: 2022
Posted at
Mar 14, 2026, 2:58 PM
Active
[WTS] OMEGA Seamaster Diver 300M 212.30.41.20.03.001

OMEGA Seamaster Diver 300M 212.30.41.20.03.001

The watch being sold is an OMEGA Seamaster Diver 300M, a popular and reliable diver's watch.

  • Case Diameter: 41mm
  • Shipping Info: Fedex with insurance
Posted at
Mar 14, 2026, 12:12 PM
Active
[WTS] OMEGA Seamaster Diver 300M "Paris 2024" Ref. 522.21.42.20.04.001 + Five Stripes "Paris 2024" NATO Strap - ULTIMATE SET! 🔥$7,900🔥

OMEGA Seamaster Diver 300M "Paris 2024" Ref. 522.21.42.20.04.001 + Five Stripes "Paris 2024" NATO Strap - ULTIMATE SET! 🔥$7,900🔥

The OMEGA Seamaster Diver 300M 'Paris 2024' is a luxurious tribute to sporting excellence, featuring a 42mm case combining stainless steel with 18K Moonshine Gold and a white ceramic dial.

  • Condition: UNWORN
  • Case size: 42mm
  • Material: stainless steel and 18K Moonshine Gold
  • Water resistance: 300m depth rating
Posted at
Mar 13, 2026, 8:16 PM
Active