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

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] Omega Seamaster Diver 300M - 210.32.42.20.06.001 - Grey Wave / Rubber Strap - Full Set

Omega Seamaster Diver 300M - 210.32.42.20.06.001 - Grey Wave / Rubber Strap - Full Set

A 2023 Omega Seamaster Diver 300M with a grey wave dial and blue ceramic bezel, paired with a comfortable blue rubber strap.

  • Condition: like new
  • Material: stainless steel
  • Water resistance: 300m
Posted at
Dec 14, 2025, 5:31 PM
Active
[WTS] 2021 Omega Seamaster Diver 300M Nekton Edition 210.32.42.20.01.002 Complete Set

2021 Omega Seamaster Diver 300M Nekton Edition 210.32.42.20.01.002 Complete Set

A 2021 Omega Seamaster Diver 300M Nekton Edition in 42mm, featuring a dark grey dial with polished waves and a Grade 5 titanium bezel.

  • Condition: great to excellent, with some minor marks on the case and strap
  • Movement: Cal. 8806
  • Lume: nuclear
  • Water resistance: 300m
Posted at
Dec 14, 2025, 1:34 PM
Active
[WTS] Omega Seamaster Diver 300M Two Tone 42mm Black Dial 210.20.42.20.01.002 Complete

Omega Seamaster Diver 300M Two Tone 42mm Black Dial 210.20.42.20.01.002 Complete

Omega Seamaster Diver 300M Two Tone 42mm Black Dial in very good condition with minimal handling marks.

  • Condition: In very good condition, rated at 9.8/10
  • Box And Papers: true
  • Links Included: 3
Posted at
Dec 12, 2025, 11:02 AM
Active
[WTS] 2021 Omega Seamaster Diver 300M Nekton Edition 210.32.42.20.01.002 Complete Set

2021 Omega Seamaster Diver 300M Nekton Edition 210.32.42.20.01.002 Complete Set

The Omega Seamaster Diver 300M Nekton Edition is a 42mm watch with a dark grey dial, polished waves as contrast, and a Grade 5 titanium bezel. It has a solid case back and a full red seconds hand.

  • Condition: Great to excellent condition, with some marks and signs of use on the case and strap
  • Movement: Omega Cal. 8806, METAS certified
  • Water Resistance: 300m
  • Lume: nuclear
Posted at
Dec 11, 2025, 2:40 PM
Active
[WTS] 2023 Omega Seamaster Diver 300M "Seaweed" 42mm Green Dial 210.32.42.20.10.001 Full Set

2023 Omega Seamaster Diver 300M "Seaweed" 42mm Green Dial 210.32.42.20.10.001 Full Set

2023 Omega Seamaster Diver 300M 'Seaweed' model featuring a 42mm stainless steel case with green ceramic dial and rotating dive bezel.

  • Condition: Very nice preowned condition with some light scratches on the case and buckle
  • Case material: Stainless Steel
  • Case dimensions: 42mm diameter
  • Bezel material: Stainless Steel
Posted at
Dec 9, 2025, 8:07 PM
Active
[WTS] Omega Seamaster Diver 300m Black Dial with box and papers

Omega Seamaster Diver 300m Black Dial with box and papers

This Omega Seamaster Diver 300m features a stainless steel case, black ceramic dial, and a black rubber strap. It is powered by an in-house movement that runs flawlessly.

  • Condition: Excellent
  • Case Size: 42mm diameter
  • Water Resistance: 300m depth rating
  • Box And Papers: yes
Posted at
Dec 9, 2025, 7:34 PM
Active