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] Omega Seamaster 300 41mm Blue – Full Set – Excellent Condition – $3,300

Omega Seamaster 300 41mm Blue – Full Set – Excellent Condition – $3,300

A beautiful Omega Seamaster 300 with a blue dial, one of Omega's most iconic and reliable dive watches, in excellent overall condition.

  • Condition: Used – Very Good (9/10)
  • Case size: 41mm
  • Dial color: Blue
  • Crystal condition: Clean with no scratches
Posted at
Apr 26, 2026, 8:43 PM
Active
[WTS] Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,190

Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,190

Omega - 2222.80 · $2,190
The Omega Seamaster 300M Co-Axial Mid-size is a 36mm automatic watch with an Omega co-axial cal 2500 movement. It features a steel case on original Omega steel bracelet and has all functions working well.

  • Condition: Very good (8.9/10)
  • Case size: 36mm
  • Movement type: co-axial cal 2500
  • Bracelet length: up to 7-7.25 inch wrists
Posted at
Apr 23, 2026, 9:45 PM
Active
[WTS] Omega Seamaster 300 Vintage Super Complete Kit Ref. 165.024

Omega Seamaster 300 Vintage Super Complete Kit Ref. 165.024

A vintage Omega Seamaster 300 is being sold as a complete kit with its original documents dating back to January 23, 1970.

  • Type: Seamaster 300 Vintage Super Complete Kit
Posted at
Apr 23, 2026, 6:13 PM
Active
[WTS] Omega Seamaster 300m Full kit- $4250

Omega Seamaster 300m Full kit- $4250

Omega - 300m 42mm · $4,250
A complete Omega Seamaster 300m full kit, featuring a 42mm case size, undated card and purchase receipt from 2021. It runs well on timegrapher and is overall in good pre-owned condition.

  • Condition: good pre owned condition
  • Water Resistance: 300m depth rating
Posted at
Apr 23, 2026, 3:30 PM
Active
[WTS] Omega Seamaster 300M Black Aluminum / Orange 210.30.42.20.01.018 ( new / 2025 / box and papers )

Omega Seamaster 300M Black Aluminum / Orange 210.30.42.20.01.018 ( new / 2025 / box and papers )

This Omega Seamaster 300M is a brand new watch with a black aluminum dial and orange accents, featuring a master co-axial movement and a stainless steel case.

  • Condition: Brand new
  • Case size: 42mm diameter
  • Movement type: Master Co-Axial
Posted at
Apr 23, 2026, 2:00 PM
Active
[WTS] Omega Seamaster 300M Black / Orange Diver 210.32.42.20.01.006 ( new / 2025 / box and papers )

Omega Seamaster 300M Black / Orange Diver 210.32.42.20.01.006 ( new / 2025 / box and papers )

This Omega Seamaster 300 is a Master Chronometer with a 42mm stainless steel case and an 8806 movement. It features a black and orange dial on an orange rubber strap.

  • Condition: Brand new
  • Case size: 42mm diameter
  • Movement type: Master Co-Axial
Posted at
Apr 23, 2026, 1:50 PM
Active
[WTS] Omega Seamaster 300M 42mm Black 210.30.42.20.01.001 ( new / 2025 / box and papers )

Omega Seamaster 300M 42mm Black 210.30.42.20.01.001 ( new / 2025 / box and papers )

Up for sale is a brand new Omega Seamaster 300 with a 42mm stainless steel case and Master Co-Axial Movement.

  • Condition: Brand new
  • Case size: 42mm
  • Movement: 8800 Master Co-Axial
Posted at
Apr 23, 2026, 1:44 PM
Active
[WTS] Omega Seamaster 300M OEM Blue Rubber Strap + Clasp - $300

Omega Seamaster 300M OEM Blue Rubber Strap + Clasp - $300

Omega - 300M · $300
Genuine OEM accessories for an Omega Seamaster 300M watch, including a blue rubber strap and clasp in good condition.

  • Condition: Very good
  • Length: 20mm
  • Material: rubber
Posted at
Apr 22, 2026, 5:12 PM
Active
[WTS] OMEGA Seamaster 300 ref. 233.30.41.21.01.001 Box+Papers

OMEGA Seamaster 300 ref. 233.30.41.21.01.001 Box+Papers

2017 OMEGA Seamaster 300 in stainless steel, running at +0.6s/day. The watch has been well taken care of and includes original box and papers.

  • Condition: Pre-owned, near mint with scratches on the bracelet
  • Material: Stainless Steel
  • Year: 2017
  • Movement: co-axial
Posted at
Apr 22, 2026, 4:37 PM
Active