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

Reference 210.30.42.20.06.001

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

About this watch

The Omega Seamaster Diver 300M Master Co-Axial 42 is a stunning piece of horological craftsmanship that resonates with both watch enthusiasts and casual wearers alike. With its striking grey dial and robust construction, this model blends elegance with functionality. The design of the Seamaster Diver 300M is a perfect marriage of style and utility, featuring a 42 mm round case made from high-quality stainless steel and a ceramic bezel with a rotating 0-60 dive scale. At the core lies the Omega Caliber 8800, a self-winding movement certified as a Master Chronometer, guaranteed to provide precision and performance. With its impressive water resistance of up to 300 meters and Co-Axial escapement reducing friction between moving parts, this watch is built to last. It's an experience on your wrist that combines functionality with aesthetic appeal.
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MSRP: $5,900
Market Price: $3,814

Key Features

  • 42mm round case made from stainless steel
  • Ceramic bezel with rotating 0-60 dive scale
  • Omega Caliber 8800 self-winding movement
  • Master Chronometer certification
  • 300m water resistance
  • Co-Axial escapement reducing friction between moving parts
  • Sapphire crystal glass scratch-resistant

Specifications

Brand
Omega
Family
Seamaster Diver 300m
Model
Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Grey / Bracelet
Reference
210.30.42.20.06.001
Movement
8800
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
42mm
Dial Color
Grey
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Omega Seamaster Diver 300M 210.32.42.20.03.001 Blue 2021 Full Set - $4,395

Omega Seamaster Diver 300M 210.32.42.20.03.001 Blue 2021 Full Set - $4,395

Omega - 210.32.42.20.03.001 · $4,395
A 2021 Omega Seamaster Diver 300m Blue is up for sale, featuring a diver's watch design with a blue color scheme.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2021
  • Contents: Watch, Inner & Outer Box, Card Holder, International Warranty Card, Pictograms Card, Master Chronometer Card, Instructions Manual, Hang Tag
Posted at
Apr 1, 2026, 3:01 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M 210.30.42.20.03.001 Blue 2022 Full Set - $4,395

Omega Seamaster Diver 300M 210.30.42.20.03.001 Blue 2022 Full Set - $4,395

Omega - 210.30.42.20.03.001 · $4,395
Up for sale is an Omega Seamaster Diver 300m Blue from 2022, featuring a blue dial and coming with a full set of accessories.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2022
  • Box Contents: Watch, Inner & Outer Box, Card Holder, International Warranty Card, Pictograms Card, Master Chronometer Card, Instructions Manual
Posted at
Apr 1, 2026, 2:57 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M 210.30.42.20.10.001 Green Seaweed 2022 Full Set - $5,395

Omega Seamaster Diver 300M 210.30.42.20.10.001 Green Seaweed 2022 Full Set - $5,395

Omega - 210.30.42.20.10.001 · $5,395
This Omega Seamaster Diver 300M Green Seaweed is a 2022 model, featuring a green dial and matching band.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2022
  • Box Contents: watch, inner & outer box, card holder, international warranty card, pictograms card, master chronometer card, instructions manual
  • Shipping Insurance: fully insured
Posted at
Apr 1, 2026, 2:56 PM
Active
View listing on r/WatchExchange
[WTS] 2023 Omega Seamaster Diver 300M 42mm Titanium Bond NTTD 210.92.42.20.01.001 Full Set

2023 Omega Seamaster Diver 300M 42mm Titanium Bond NTTD 210.92.42.20.01.001 Full Set

Omega - 210.92.42.20.01.001 · $7,250
2023 Omega Seamaster Diver 300M 42mm Titanium Bond NTTD 007 Edition, featuring a titanium case, rotating dive bezel, brown tropical aluminium dial, and titanium mesh bracelet.

  • Condition: Preowned with scratches on the case, bezel and bracelet.
  • Case material: Titanium
  • Case dimensions: 42mm diameter
  • Bezel material: Titanium
Posted at
Mar 31, 2026, 8:27 PM
Active
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[WTS] Omega Seamaster Diver 300M 44mm Chronograph Blue Wave Dial 210.30.44.51.03.001

Omega Seamaster Diver 300M 44mm Chronograph Blue Wave Dial 210.30.44.51.03.001

Omega - 210.30.44.51.03.001 · $6,500
The Omega Seamaster Diver 300M Chronograph has a sporty, bold design with a deep blue ceramic dial and matching blue ceramic bezel. It's powered by the Co-Axial Master Chronometer Caliber 9900, providing serious performance and anti-magnetism.

  • Condition: Excellent pre-owned condition
  • Bracelet size: 8 1/4 inches
  • Case condition: little to no signs of wear
  • Bezel condition: little to no signs of wear
Posted at
Mar 31, 2026, 12:41 PM
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[WTS] BNIB Omega Seamaster Diver 300M 210.30.42.20.04.001 $5,350

BNIB Omega Seamaster Diver 300M 210.30.42.20.04.001 $5,350

Omega - 210.30.42.20.04.001 · $5,350
This Omega Seamaster Diver 300M features a black ceramic bezel, white enamel diving scale, and a polished white ceramic dial with laser-engraved waves.

  • Condition: Brand new in box with no issues
  • Case diameter: 42mm
  • Lug width: 20mm
  • Water resistance: 300m depth rating
Posted at
Mar 30, 2026, 12:15 PM
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[WTS] Omega Seamaster Diver 300m 18k Sedna Gold 210.22.42.20.01.002 $4,850

Omega Seamaster Diver 300m 18k Sedna Gold 210.22.42.20.01.002 $4,850

Omega - 210.22.42.20.01.002 · $4,850
The Omega Seamaster Professional Diver 300 features a beautiful sunburst black wave dial, ceramic bezel and Ceragold diving scale, powered by the reliable Omega Calibre 8800 movement.

  • Condition: Fair (small ding on top left lug)
  • Case material: 18k Sedna Gold
  • Dial color: black
  • Bezel material: ceramic
Posted at
Mar 29, 2026, 9:31 AM
Active
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[WTS] Omega Seamaster Diver 300M 210.32.42.20.03.001 Blue 2021 Full Set - $4,395

Omega Seamaster Diver 300M 210.32.42.20.03.001 Blue 2021 Full Set - $4,395

Omega - 210.32.42.20.03.001 · $4,395
Up for sale is an Omega Seamaster Diver 300m Blue, a 2021 model featuring the reference number 210.32.42.20.03.001, in excellent condition.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2021
  • Contents: Watch, Inner & Outer Box, Card Holder, International Warranty Card, Pictograms Card, Master Chronometer Card, Instructions Manual, Hang Tag
Posted at
Mar 28, 2026, 5:18 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M 210.30.42.20.03.001 Blue 2022 Full Set - $4,395

Omega Seamaster Diver 300M 210.30.42.20.03.001 Blue 2022 Full Set - $4,395

Omega - 210.30.42.20.03.001 · $4,395
Up for sale is a Omega Seamaster Diver 300m Blue, a **Reference**: 210.30.42.20.03.001 from the year 2022.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2022
  • Contents: Watch, Inner & Outer Box, Card Holder, International Warranty Card, Pictograms Card, Master Chronometer Card, Instructions Manual
Posted at
Mar 28, 2026, 5:15 PM
Active
View listing on r/WatchExchange