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

Reference 210.30.42.20.06.001

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.
Buy Now on Jomashop
This is an affiliate link
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][US] Omega Seamaster Diver 300m - Blue Dial - 41mm - 212.30.41.20.03.001 - Full Set

[US] Omega Seamaster Diver 300m - Blue Dial - 41mm - 212.30.41.20.03.001 - Full Set

This Omega Seamaster Diver 300m features a blue dial and is housed in a 41mm case.

  • Condition: Fantastic condition with minor hairlines
  • Case Size: 41mm
  • Depth Rating: 300m
Posted at
May 27, 2026, 7:27 AM
Active
[WTS] Omega Seamaster Diver 300M Trio |212.30.41.20.01.003 | 41MM black lacquer dials | All in excellent condition

Omega Seamaster Diver 300M Trio |212.30.41.20.01.003 | 41MM black lacquer dials | All in excellent condition

This listing features three Omega Seamaster Diver 300M watches with 41MM black lacquer dials, all in excellent condition.

Posted at
May 26, 2026, 10:44 PM
Active
[WTS] Omega Seamaster Diver 300M Co-Axial Master Chronometer — Green Wave Dial | Ref. 210.32.42.20.10.001 | w/ Box & Papers | $4900

Omega Seamaster Diver 300M Co-Axial Master Chronometer — Green Wave Dial | Ref. 210.32.42.20.10.001 | w/ Box & Papers | $4900

This listing is for an Omega Seamaster Diver 300M Co-Axial Master Chronometer with a green wave dial.

  • Box and papers included: true
Posted at
May 26, 2026, 9:01 PM
Active
[WTS] Omega Seamaster Diver 300m. Ref 210.32.42.20.04.001 - 6/2025 Complete Set

Omega Seamaster Diver 300m. Ref 210.32.42.20.04.001 - 6/2025 Complete Set

This Omega Seamaster Diver 300M features a stainless steel case, black aluminum bezel and white dial.

  • Condition: Very good pre-owned condition
  • Case size: 42mm diameter
  • Water resistance: 50m
  • Movement type: robust movement
Posted at
May 26, 2026, 12:09 AM
Active
[WTS] Omega Seamaster Diver 300M Chronograph 210.22.44.51.01.001 Black Dial 44mm Full Set

Omega Seamaster Diver 300M Chronograph 210.22.44.51.01.001 Black Dial 44mm Full Set

The Omega Seamaster Diver 300M Chronograph features a stainless steel and Sedna gold case, black wave-pattern dial on a black rubber strap, and an automatic Co-Axial chronograph movement. It comes with original box, warranty papers, and all contents.

  • Condition: very good condition with light signs of normal wear
  • Case size: 44mm diameter
  • Materials: stainless steel & Sedna gold
  • Movement type: automatic Co-Axial chronograph
Posted at
May 25, 2026, 10:16 PM
Active
[WTS] Omega Seamaster Diver 300M James Bond 60th Anniversary 210.30.42.20.03.002 $6,999

Omega Seamaster Diver 300M James Bond 60th Anniversary 210.30.42.20.03.002 $6,999

This Omega Seamaster Diver 300M James Bond 60th Anniversary is a special edition watch launched to celebrate six decades of 007 on screen. It features a reliable Omega Calibre 8806 and is COSC and METAS certified with resistance to magnetic fields up to 15,000 gauss.

  • Condition: Preowned - Excellent
  • Calibre: 8806
  • Certification: COSC and METAS
  • Magnetic field resistance: 15,000 gauss
Posted at
May 25, 2026, 8:07 PM
Active
[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

This Omega Seamaster Diver 300M Green Seaweed is a 2024 model, featuring the reference number 210.30.42.20.10.001.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2024
  • Contents: Watch,Inner & Outer Box,Card Holder,International Warranty Card,Pictograms Card,Master Chronometer Card,Instructions Manual
Posted at
May 24, 2026, 11:40 AM
Active
[WTS] Omega Seamaster Diver 300M | Ref. 210.32.42.20.04.001

Omega Seamaster Diver 300M | Ref. 210.32.42.20.04.001

The Omega Seamaster Diver 300M features a white wave dial, green ceramic bezel, and Master Chronometer movement. This watch offers a unique presence on wrist while maintaining the classic Seamaster DNA.

  • Condition: Mint condition
  • Case Size: 42mm diameter
  • Movement: Omega Co-Axial Master Chronometer Caliber 8800
  • Power Reserve: 55 hours
Posted at
May 23, 2026, 9:52 PM
Active
[WTS] Omega Seamaster Diver 300M (210.32.42.20.06.001)

Omega Seamaster Diver 300M (210.32.42.20.06.001)

This Omega Seamaster Diver 300M features a gray 'wave' dial on a blue rubber strap, and comes with boxes, booklet, and warranty card dated March 2020.

  • Condition: Very good condition, few light marks on the case
  • Case size: 42mm diameter
  • Movement caliber: 8800
Posted at
May 23, 2026, 7:29 AM
Active