Omega Seamaster 300 Seamaster 300 Master Co-Axial Stainless Steel / Black / Bracelet

Reference 233.30.41.21.01.001

About this watch

The Omega Seamaster 300 Master Co-Axial is a masterpiece that blends luxury with functionality. Its stunning design, robust movement, and impressive features make it a worthy investment for anyone looking to own a piece of horological history. With a water resistance of 300 meters, it’s designed for serious diving activities, while its comfortable fit and stylish design make it suitable for everyday wear. The watch features a 41mm round stainless steel case, black dial with stick and dot indexes, and a rotating bezel with a 0-60 scale. Protected by a sapphire crystal, the watch is resistant to scratches. At the heart of the Seamaster 300 is the Omega caliber 8400 movement, which incorporates the Co-Axial escapement for enhanced precision and stability.
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MSRP: $6,800
Market Price: $3,630

Key Features

  • 41mm round stainless steel case
  • Black dial with stick and dot indexes
  • Rotating bezel with 0-60 scale
  • Sapphire crystal protection
  • Omega caliber 8400 movement
  • Co-Axial escapement for precision and stability
  • 300m water resistance

Specifications

Brand
Omega
Family
Seamaster 300
Model
Seamaster 300 Master Co-Axial Stainless Steel / Black / Bracelet
Reference
233.30.41.21.01.001
Movement
8400
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

2023 Omega Seamaster 300M Seaweed 210.30.42.20.10.001 Full Set [WTS]

2023 Omega Seamaster 300M Seaweed 210.30.42.20.10.001 Full Set

The watch is an Omega Seamaster 300M with a green dial, chronometer, date display, helium escape valve, rotating bezel, and transparent caseback.

  • Condition: really good condition
  • Movement: Omega 8800
  • Power reserve: 55 hours
  • Crystal type: Sapphire crystal
Posted at
Jan 14, 2026, 6:57 PM
Active
2015 Steel Omega Seamaster 300M 212.30.41.20.01.003 [WTS]

2015 Steel Omega Seamaster 300M 212.30.41.20.01.003

2015 Omega Seamaster 300M, black dial on a steel bracelet with features including self-winding mechanical movement and date display.

  • Condition: Good condition
  • Case diameter: 41mm
  • Movement caliber: Omega 2500
  • Power reserve: 48 hours
Posted at
Jan 14, 2026, 6:40 PM
Active
2024 Omega Seamaster 300M 234.30.41.20.01.001 [WTS]

2024 Omega Seamaster 300M 234.30.41.20.01.001

The Omega Seamaster 300M features a black dial, screw-in crown with time zone function, and unidirectional rotating bezel.

  • Condition: excellent condition
  • Case Diameter: 41 MM
  • Dial Color: black
  • Movement: Omega 8912
Posted at
Jan 14, 2026, 6:34 PM
Active
[WTS] Omega Seamaster 300M Beijing Olympics - $3750

Omega Seamaster 300M Beijing Olympics - $3750

Omega Seamaster 300m Master Co-axial 42 Beijing 2022 Olympic Winter games, sized for a 7.1 in wrist, comes with limited edition box.

  • Condition: Preowned, in great condition
  • Size: 42mm diameter
  • Water Resistance: 300m depth rating
Posted at
Jan 14, 2026, 7:48 AM
Active
[WTS] Omega Seamaster 300M Co-Axial Mid-size 2220.80 Box and Card - $2,850 - Reserved for u/hachoopoo

Omega Seamaster 300M Co-Axial Mid-size 2220.80 Box and Card - $2,850 - Reserved for u/hachoopoo

Omega - 2220.80 · $2,850
A mid-size Omega Seamaster 300M Co-Axial watch with a 41mm steel case and automatic co-axial cal 2500 movement. The watch features a sapphire crystal and comes with an original Omega steel bracelet.

  • Condition: Excellent condition with minimal marks/hairlines
  • Case size: 41mm diameter
  • Movement: automatic co-axial cal 2500
  • Bracelet length: fits up to 7-7.25 inch wrists depending on wrist shape
Posted at
Jan 13, 2026, 11:01 PM
Active
[WTS] Omega Seamaster 300 Steel Pumpkin Patina Lollipop Hand (Unpolished/Serviced)

Omega Seamaster 300 Steel Pumpkin Patina Lollipop Hand (Unpolished/Serviced)

Omega - 300 · $10,500
  • Condition: unpolished/serviced
  • Case material: steel
  • Patina type: pumpkin
Posted at
Jan 13, 2026, 5:20 PM
Active
[WTS] Omega Seamaster 300M "Seaweed" Green Wave Dial on OEM Mesh! 210.32.42.20.10.001

Omega Seamaster 300M "Seaweed" Green Wave Dial on OEM Mesh! 210.32.42.20.10.001

The Omega Seamaster Diver 300M 'Seaweed' features a rare and striking color combination, powered by the Caliber 8800 movement and water-resistant up to 300 meters.

  • Condition: Excellent preowned condition
  • Movement: Caliber 8800
  • Power reserve: up to 55 hours
  • Water resistance: up to 300 meters
Posted at
Jan 13, 2026, 11:31 AM
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 is a classic dive watch with a rich, glossy black dial and a steel case that feels timeless and refined.

  • Condition: Excellent
  • Case material: steel
  • Bracelet type: matching bracelet
  • Included kit: outer box, inner box, operating instructions, extra strap, card holder, warranty card, master chronometer card and pictograms card
Posted at
Jan 12, 2026, 6:48 PM
Active