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

Reference 210.20.42.20.03.002

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

About this watch

The Omega Seamaster Diver 300M Master Co-Axial 42 is an exceptional watch that successfully merges style, functionality, and durability. Its stunning blue dial with Sedna gold accents is reminiscent of the deep ocean, while its robust stainless steel case and ceramic bezel provide a durable and scratch-resistant exterior. At the heart of this luxury timepiece lies the Omega caliber 8800, a self-winding movement featuring a Co-Axial escapement that increases accuracy and reduces friction. With a power reserve of 55 hours, Master Chronometer certification, and resistance to magnetic fields up to 15,000 gauss, this watch is both precise and reliable. The Seamaster Diver 300M boasts an impressive water resistance of 300m, making it perfect for diving or everyday wear. Whether you're an avid diver or simply appreciate fine craftsmanship, this watch is sure to impress with its versatility, style, and luxury appeal.
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MSRP: $12,700
Market Price: $7,610

Key Features

  • 42mm Stainless Steel Case
  • Sapphire Crystal Glass
  • 300m Water Resistance
  • Master Chronometer Certification
  • Omega Caliber 8800 Movement
  • Co-Axial Escapement
  • 55-Hour Power Reserve

Specifications

Brand
Omega
Family
Seamaster Diver 300m
Model
Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Sedna Gold / Blue / Bracelet
Reference
210.20.42.20.03.002
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 210.30.42.20.04.001 *Brand New* $5,225

Omega Seamaster Diver 300M 210.30.42.20.04.001 *Brand New* $5,225

Omega - 210.30.42.20.04.001 · $5,225
The Omega Seamaster Diver 300M features a black ceramic bezel, white enamel diving scale, and polished white ceramic dial with laser-engraved waves and date window at 6 o'clock. It is powered by the OMEGA Master Chronometer Calibre 8800 movement and has a 30-bar water resistance of 300m.

  • Condition: Brand new in box with no issues
  • Case Diameter: 42mm
  • Lug Width: 20mm
  • Water Resistance: 300m depth rating
Posted at
May 22, 2026, 2:00 PM
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[WTS] 2023 Omega Seamaster Diver 300M Grey 12/23 Ref# 210.30.42.20.06.001 $4,199.00

2023 Omega Seamaster Diver 300M Grey 12/23 Ref# 210.30.42.20.06.001 $4,199.00

Omega - 210.30.42.20.06.001 · $4,199
2023 Omega Seamaster Diver 300M Grey, featuring a beautiful wave dial, blue bezel, and automatic movement. The watch has a size of 42mm and a stainless steel bracelet that fits an 8in wrist.

  • Condition: Excellent shape, a few minor hairlines on case-clasp and bracelet
  • Diameter: 42mm
  • Water resistance: 300M
  • Movement: 8806
Posted at
May 22, 2026, 12:09 PM
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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
Up for sale is a **Omega Seamaster Diver 300m Green Seaweed** in excellent condition, thoroughly tested and running well.

  • 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 21, 2026, 7:38 PM
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[WTS] Omega Seamaster Diver 300M -01/26 – Full Kit – $4,425 Shipped

Omega Seamaster Diver 300M -01/26 – Full Kit – $4,425 Shipped

Omega - Seamaster Diver 300M -01/26 · $4,425
This Omega Seamaster Diver 300M features a white wave dial and comes with a full kit, including inner/outer boxes, cards, manuals, and accessories. The watch is in very good condition with minimal marks on the case and bezel.

  • Condition: Very good pre-owned condition
  • Case size: 40mm diameter
  • Water resistance: 300m
Posted at
May 21, 2026, 12:31 AM
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[WTS] Omega Seamaster Diver 300M Ref. 212.30.41.20.03.001 Box & Papers Very Good Condition

Omega Seamaster Diver 300M Ref. 212.30.41.20.03.001 Box & Papers Very Good Condition

Omega - 212.30.41.20.03.001 · $3,299
This Omega Seamaster Diver features a blue wave dial and ceramic bezel with an iconic design.

  • Condition: Very good condition overall
  • Box Papers: Yes, includes original inner box, warranty card, manual, pictograms card, and full links
  • Movement: Co-Axial automatic
Posted at
May 20, 2026, 11:10 PM
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[WTS] Omega Seamaster Diver 300M 42mm Black Wave Dial-$3400

Omega Seamaster Diver 300M 42mm Black Wave Dial-$3400

Omega - 210.30.42.20.01.001 · $3,400
A 2021 Omega Seamaster Diver 300M Professional with a black ceramic dial configuration on a stainless steel bracelet.

  • Condition: Excellent overall condition
  • Case size: 42mm diameter
  • Water resistance: 300m depth rating
Posted at
May 20, 2026, 6:37 PM
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[WTS] 2026 Omega Seamaster Diver 300M Summer Blue 1/26 Ref# 210.32.42.20.03.002 $4,999.00

2026 Omega Seamaster Diver 300M Summer Blue 1/26 Ref# 210.32.42.20.03.002 $4,999.00

Omega - 210.32.42.20.03.002 · $4,999
A 2026 Omega Seamaster Diver 300M Summer Blue with a gradient blue wave dial and bezel, automatic movement and 300m water resistance.

  • Condition: Excellent shape with minor hairlines on case and clasp
  • Case diameter: 42mm
  • Water resistance depth rating: 300M
  • Movement type: Automatic
Posted at
May 20, 2026, 3:18 PM
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[WTS] 2022 Omega Seamaster Diver 300M Black 4/22 Ref# 210.30.42.20.01.001 $4,299.00

2022 Omega Seamaster Diver 300M Black 4/22 Ref# 210.30.42.20.01.001 $4,299.00

Omega - 210.30.42.20.01.001 · $4,299
A 2022 Omega Seamaster Diver 300M Black features a beautiful black wave dial and bezel, automatic movement, and 300M water resistance.

  • Condition: Great shape, minor hairlines on case
  • Case size: 42mm
  • Water resistance: 300m
  • Movement: 8806
Posted at
May 20, 2026, 2:30 PM
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[WTS] Omega Seamaster Diver 300m Black Dial 44mm

Omega Seamaster Diver 300m Black Dial 44mm

Omega - 210.32.44.51.01.001 · $5,200
The Omega Seamaster Diver 300M Chronograph is a daily piece that brings the perfect balance of sport, functionality, and wrist presence. It has a clean black-on-black configuration with a factory rubber strap making it incredibly wearable.

  • Condition: Great pre-owned condition with light signs of wear
  • Movement: Chronograph movement
Posted at
May 20, 2026, 1:21 PM
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