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.
Buy Now on Jomashop
This is an affiliate link
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] Omega Seamaster 300M Co-Axial 41mm 2220.80 Box and Card - $2,790

Omega Seamaster 300M Co-Axial 41mm 2220.80 Box and Card - $2,790

Omega - 2220.80 · $2,790
This Omega Seamaster 300M Co-Axial is a 41mm automatic watch featuring an co-axial cal 2500 movement.

  • Condition: Very good condition, minimal marks/hairlines
  • Movement: co-axial cal 2500
  • Bracelet size: fits up to 7-7.25 inch wrists depending on wrist shape
  • Water resistance: not specified
Posted at
Feb 11, 2026, 8:59 PM
Active
[WTS] Omega Seamaster 300 Heritage Co-Axial Chronometer 234.30.41.21.01.001 Complete Set

Omega Seamaster 300 Heritage Co-Axial Chronometer 234.30.41.21.01.001 Complete Set

The Omega Seamaster 300 Heritage has a black dial with rich, glossy depth and broad arrow hands, paired with a steel case and matching bracelet for a solid, balanced look.

  • Condition: Excellent
  • Included Accessories: outer box, inner box, operating instructions, extra strap, card holder, warranty card, master chronometer card and pictograms card
  • Shipping Method: free overnight CONUS insured shipping
Posted at
Feb 11, 2026, 2:56 PM
Active
[WTS] Omega Seamaster 300M Co-Axial 2220.80 B&P 41mm- $2,790

Omega Seamaster 300M Co-Axial 2220.80 B&P 41mm- $2,790

Omega - 2220.80 · $2,790
The Omega Seamaster 300M Co-Axial is a 41mm automatic watch featuring an co-axial cal 2500 movement, steel case, and original Omega steel bracelet.

  • Condition: 8.7/10 - minimal marks and hairlines on case, caseback, and bracelet
  • Movement: cal 2500
  • Bracelet size: up to 7-7.25 inch wrists depending on wrist shape
  • Shipping method: Fedex Priority Shipping
Posted at
Feb 9, 2026, 8:42 PM
Active
[WTS] Omega Seamaster 300m Chronograph 44mm 212.30.44.50.03.001

Omega Seamaster 300m Chronograph 44mm 212.30.44.50.03.001

This Omega Seamaster 300m Chronograph is a 44mm automatic watch, featuring a fresh polish and 7.25" bracelet.

  • Condition: Fresh polish
  • Bracelet length: 7.25"
  • Payment methods: Zelle, Venmo, or Western Union
Posted at
Feb 9, 2026, 7:07 PM
Active
[WTS] Omega Seamaster 300 Heritage

Omega Seamaster 300 Heritage

A one-owner Omega Seamaster 300 Heritage, purchased from the Omega Beverly Center in 2021. The watch has never been polished and is in excellent condition.

  • Condition: like new
  • Owner history: 1 owner
  • Purchase date: 9/3/21
  • Original purchase location: Omega Beverly Center
Posted at
Feb 8, 2026, 4:13 PM
Active
[WTS] 1967 Omega Seamaster 300, Ref 165.024, Full Set

1967 Omega Seamaster 300, Ref 165.024, Full Set

Omega - 165.024 · $8,000
This is possibly the finest available vintage Omega Seamaster 300 from the mid-1960s, featuring a Bakelite dial with one flea bite and an upgraded original box.

  • Condition: Very Good to Excellent Condition
  • Case material: Stainless Steel
  • Movement type: Automatic
  • Diameter: 41mm
Posted at
Feb 7, 2026, 11:50 AM
Active
[WTS] Omega Seamaster 300 Heritage - 41mm - Black Dial - 233.30.41.21.01.001

Omega Seamaster 300 Heritage - 41mm - Black Dial - 233.30.41.21.01.001

This Omega Seamaster 300 Heritage is a 41mm watch featuring a black dial.

  • Condition: Fantastic condition with minor hairlines on case, clasp, and bracelet
  • Case size: 41mm
  • Bracelet links: 15
Posted at
Feb 7, 2026, 11:23 AM
Active
[WTS] 2011 Omega Seamaster 300M 2123.04 - $2,399

2011 Omega Seamaster 300M 2123.04 - $2,399

Omega - 2123.04 · $2,399
A 2011 Omega Seamaster Diver 300M Quartz with a stainless steel case, black dial, and quartz movement. It features a domed sapphire crystal and is water-resistant up to 1000 feet.

  • Condition: Great condition overall with light wear consistent with careful use.
  • Case diameter: 41mm
  • Case material: Stainless steel
  • Dial color: Black
Posted at
Feb 5, 2026, 10:33 PM
Active
[WTS] Omega Seamaster 300 2220.80 “Casino Royale”Box and Papers

Omega Seamaster 300 2220.80 “Casino Royale”Box and Papers

Omega - 2220.80 · $3,600
A Omega Seamaster Professional from 'Casino Royale' with a stainless steel bracelet and original accessories.

  • Condition: Good condition with scuffing on bracelet and superficial wear
  • Bracelet length: 6.5 inches
  • Links included: 3 full and 2 half sized links
  • Timekeeping accuracy: -7 seconds per day
Posted at
Feb 4, 2026, 12:48 PM
Active