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

Reference 233.90.41.21.03.001

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

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 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
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Omega Seamaster 300M Grey dial Full set 42MM [WTS]

Omega Seamaster 300M Grey dial Full set 42MM

Omega - 210.32.42.20.06.001 · $3,850
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
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[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

Omega - 233.30.41.21.01.001 · $3,399
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
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[WTS] OMEGA Seamaster 300 Black - Full Set - B&P - 8/10 Condition

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

OMEGA - 210.32.42.20.01.001 · $4,450
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
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[WTS] Omega Seamaster 300M Nekton 42mm 210.30.42.20.01.002 Full set

Omega Seamaster 300M Nekton 42mm 210.30.42.20.01.002 Full set

Omega - 210.30.42.20.01.002 · $4,400
Up for sale is an Omega Seamaster 300M Nekton edition 42mm, featuring a primary matte finish dial with polished waves and solid case back.

  • Condition: Great to excellent condition, some marks on the case and bracelet
  • Movement: Omega Cal. 8806, METAS certified
  • Water resistance: not specified
  • Strap: OEM Omega rubber strap (can be included in the sale for additional cost)
Posted at
Dec 7, 2025, 12:02 PM
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[WTS] Omega Seamaster 300M - Ref # 212.30.41.20.03.001, 2018, Box and Papers

Omega Seamaster 300M - Ref # 212.30.41.20.03.001, 2018, Box and Papers

Omega - 212.30.41.20.03.001 · $3,550
This Omega Seamaster Professional Diver 300M is a sleek 2018 model featuring a 41mm stainless steel case, blue dial, and automatic 2500 Co-Axial movement.

  • Condition: Very good
  • Case size: 41mm diameter
  • Material: stainless steel
  • Bezel type: blue ceramic uni-directional
Posted at
Dec 6, 2025, 6:01 PM
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[wts] MAR 2025 Omega Seamaster 300M Ceramic and titanium 43.5mm 210.92.44.20.01.002

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

Omega - 210.92.44.20.01.002 · $6,200
A 43.5mm Omega Seamaster 300M Ceramic and titanium model from the MAR 2025 production run, featuring a barely worn OEM rubber strap and buckle.

  • Condition: Near mint
  • Case Material: Ceramic and titanium
  • Case Size: 43.5mm diameter
  • Strap Type: Authentic Omega rubber strap
Posted at
Dec 6, 2025, 12:04 PM
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[WTS] Omega Seamaster 300M 42mm “Great White” – Ref. 210.32.42.20.04.001 — Box + Manual 🤍 – $3,799 Shipped

Omega Seamaster 300M 42mm “Great White” – Ref. 210.32.42.20.04.001 — Box + Manual 🤍 – $3,799 Shipped

Omega - 210.32.42.20.04.001 · $3,799
This Omega Seamaster Diver 300M 'White Wave' features a 42mm case, ceramic bezel, rubber strap, Master Chronometer Cal. 8800, display caseback, and 300m water resistance.

  • Condition: Excellent overall with minor scuffs and scratches
  • Case diameter: 42mm
  • Water resistance: 300m
Posted at
Dec 5, 2025, 9:56 PM
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[WTS] Omega Seamaster 300 233.30.41.21.01.001 - Full Kit

Omega Seamaster 300 233.30.41.21.01.001 - Full Kit

Omega - 300 233.30.41.21.01.001 · $3,950
A 41mm Omega Seamaster 300 with a sapphire crystal and 300m water resistance, powered by the Omega 8400 Co-Axial movement.

  • Movement: Omega 8400 Co-Axial
Posted at
Dec 5, 2025, 4:26 PM
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