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

Reference 210.30.42.20.03.001

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

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 – Automatic 41mm – Electric Blue w/ Bond bracelet

Omega Seamaster Diver 300M – Automatic 41mm – Electric Blue w/ Bond bracelet

Omega - 2055.80.00 // 2055.80 · $2,200
The Omega Seamaster Diver 300M is an iconic watch in stainless steel with a electric blue wave dial on a Bond style bracelet, powered by the automatic Omega caliber 1120 movement.

  • Condition: Excellent all-around condition
  • Case size: 41mm diameter
  • Movement: Omega caliber 1120 automatic
  • Water resistance: 300 meters
Posted at
May 22, 2026, 6:13 PM
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[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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