Omega Seamaster 300 Seamaster 300 Master Co-Axial Titanium / Blue / Bracelet

Reference 233.90.41.21.03.001

About this watch

The Omega Seamaster 300 Master Co-Axial Titanium stands out as a remarkable blend of style, functionality, and innovation. This stunning timepiece is a game-changer with its use of titanium, which is lighter than stainless steel yet incredibly durable and resistant to corrosion. The deep blue dial catches the light beautifully, ensuring it stands out without being overly flashy. With a smooth finish and vibrant hue, it's reminiscent of ocean depths and aquatic adventures. At the core of this watch is the Omega caliber 8400 movement, a self-winding marvel featuring a Co-Axial escapement that enhances precision and stability while reducing friction. This means fewer maintenance needs over time, allowing you to enjoy your watch without frequent trips to the jeweler. With its impressive water resistance of 300 meters (or 1,000 feet), this watch is perfect for diving, swimming, or just splashing around at the beach. Its elegant design allows it to pair well with various outfits, making it suitable for both casual and formal occasions.
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MSRP: $9,000
Market Price: $4,629

Key Features

  • Omega caliber 8400 self-winding movement
  • Titanium case and bracelet
  • Deep blue dial with stick and dot indexes
  • Rotating bezel with 0-60 dive scale
  • 300 meters water resistance
  • 41.00 mm diameter
  • Sapphire glass

Specifications

Brand
Omega
Family
Seamaster 300
Model
Seamaster 300 Master Co-Axial Titanium / Blue / Bracelet
Reference
233.90.41.21.03.001
Movement
8400
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
41mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Iconic Diver: Omega Seamaster 300M Blue - 2025 - Unworn

Iconic Diver: Omega Seamaster 300M Blue - 2025 - Unworn

The Omega Seamaster Diver 300M Co-Axial Master Chronometer features a deep blue ceramic dial with laser-engraved waves, 42mm stainless steel case, and a blue ceramic bezel. It includes Omega's METAS-certified Caliber 8800 and has 300 meters of water resistance.

  • Condition: Unworn
  • Case diameter: 42mm
  • Water resistance: 300m
  • Movement: Caliber 8800
Posted at
Dec 14, 2025, 2:28 PM
Active
[WTS]  OMEGA Seamaster 300M - Blue Wave Dial

OMEGA Seamaster 300M - Blue Wave Dial

This OMEGA Seamaster Diver 300M features a blue wave dial and is part of the current-generation redesign with ceramic bezel and METAS-certified Master Chronometer movement.

  • Condition: Pre-owned, excellent condition with minimal handling wear
  • Case size: 42mm diameter
  • Bezel material: ceramic
  • Movement certification: METAS-certified Master Chronometer
Posted at
Dec 14, 2025, 11:31 AM
Active
[wts] LIKE NEW MAR 2025 Omega Seamaster 300M Ceramic and titanium 43.5mm 210.92.44.20.01.002

LIKE NEW MAR 2025 Omega Seamaster 300M Ceramic and titanium 43.5mm 210.92.44.20.01.002

A 2025 Omega Seamaster 300M with ceramic and titanium construction, featuring a 43.5mm case.

  • Condition: Near mint
  • Case material: ceramic and titanium
  • Case size: 43.5mm
  • Strap type: authentic Omega rubber
Posted at
Dec 13, 2025, 6:56 PM
Active
[WTS] Omega Seamaster 300M - 41mm No Wave Black - 212.30.41.20.01.003 - $2,495 Shipped

Omega Seamaster 300M - 41mm No Wave Black - 212.30.41.20.01.003 - $2,495 Shipped

Beautiful example of a discontinued Omega Seamaster Diver 300M 'black no-wave' in 41mm case.

  • Condition: great preowned condition
  • Case Size: 41mm
  • Thickness: .6mm thinner than the newer Seamaster
  • Bracelet Condition: very clean
Posted at
Dec 13, 2025, 5:45 PM
Active
[WTS] Omega Seamaster 300 212.30.41.20.01.003 Authenticated in Box

Omega Seamaster 300 212.30.41.20.01.003 Authenticated in Box

  • Condition: Authenticated in Box
  • Authentication: authenticated by Omega
Posted at
Dec 12, 2025, 9:40 AM
Active
[WTS] Omega Seamaster 300m ‘Electric Blue’ 2263.80

Omega Seamaster 300m ‘Electric Blue’ 2263.80

Omega - 2263.80 · $1,599
A 36mm Omega Seamaster 300m Quartz watch with an Electric Blue finish.

  • Size: 36mm diameter
  • Material: quartz
Posted at
Dec 11, 2025, 3:03 PM
Active
Omega Seamaster 300M Grey dial Full set 42MM [WTS]

Omega Seamaster 300M Grey dial Full set 42MM

A Omega Seamaster 300M with a grey dial, featuring a chronometer with date, helium escape valve, uni-rotating bezel, and transparent caseback.

  • Condition: Good condition
  • Case diameter: 42 MM
  • Dial color: Grey
  • Weight: 110 grams
Posted at
Dec 10, 2025, 7:19 PM
Active
[WTS] Omega Seamaster 300 Master Co-Axial – 41mm “Retro” – 233.30.41.21.01.001 – $3,399 Shipped

Omega Seamaster 300 Master Co-Axial – 41mm “Retro” – 233.30.41.21.01.001 – $3,399 Shipped

This Omega Seamaster 300 Master Co-Axial features a 41mm stainless steel case, black dial with vintage-tone lume, and a ceramic bezel.

  • Condition: Excellent overall with light, honest wear
  • Case size: 41mm
  • Water resistance: 300m
  • Movement type: Cal. 8400
Posted at
Dec 7, 2025, 9:47 PM
Active
[WTS] OMEGA Seamaster 300 Black - Full Set - B&P - 8/10 Condition

OMEGA Seamaster 300 Black - Full Set - B&P - 8/10 Condition

A study in stealth and sophistication featuring a laser-engraved wave-pattern dial and polished ceramic bezel in deep black. Paired with its brushed steel case and integrated bracelet, this 42mm watch delivers a powerful monochromatic statement.

  • Condition: 8/10, minor used handling marks on case
  • Case size: 42mm
  • Water resistance: 300m
Posted at
Dec 7, 2025, 7:50 PM
Active