Omega Seamaster 300 Seamaster 300 Master Chronometer Stainless Steel / Black / Bracelet

Reference 234.30.41.21.01.001

Omega Seamaster 300 Master Chronometer Stainless Steel / Black / Bracelet

About this watch

The Omega Seamaster 300 Master Chronometer is a luxurious timepiece that embodies the spirit of adventure while delivering peak performance. Its stunning black dial, mixed indexes, and arrow-shaped hands create a sophisticated look that's perfect for formal or casual settings. The sapphire crystal glass provides excellent clarity, and the open case back showcases Omega's craftsmanship. This watch is built to withstand diving conditions with its robust stainless steel bracelet and 300-meter water resistance. At its core beats the Omega caliber 8912, an automatic movement featuring a Co-Axial escapement that minimizes friction, enhancing precision and reliability. The Seamaster 300 Master Chronometer is a certified chronometer that promises reliability, making it a worthy companion for years to come.
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MSRP: $7,100
Market Price: $4,115

Key Features

  • 41mm Round Case
  • Stainless Steel Bracelet with 21mm Lug Width
  • Sapphire Crystal Glass
  • Omega Caliber 8912 Automatic Movement
  • Co-Axial Escapement and METAS Certification
  • 300-Meter Water Resistance

Specifications

Brand
Omega
Family
Seamaster 300
Model
Seamaster 300 Master Chronometer Stainless Steel / Black / Bracelet
Reference
234.30.41.21.01.001
Movement
8912
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 Box and Card - $2,390

Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 Box and Card - $2,390

Omega - 2222.80 · $2,390
Up for sale is my Omega Seamaster 2222.80, a 36mm automatic co-axial cal 2500 movement watch in great condition.

  • Condition: Very good, minimal marks and hairlines on case, caseback, and bracelet.
  • Case size: 36mm
  • Movement type: co-axial cal 2500
  • Crystal: sapphire crystal
Posted at
Feb 2, 2026, 8:22 PM
Active
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[WTS] Omega Seamaster 300m Chronograph 44mm 212.30.44.50.03.001

Omega Seamaster 300m Chronograph 44mm 212.30.44.50.03.001

Omega - 212.30.44.50.03.001 · $3,499
This Omega Seamaster 300m Chronograph features a 44mm automatic movement and is available for purchase.

  • Condition: Fresh polish
  • Bracelet Length: 7.25 inches
Posted at
Feb 2, 2026, 5:09 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster 300M Co-Axial 41mm 2220.80 Box and Papers- $2,790 - Reserved post for u/3twellv

Omega Seamaster 300M Co-Axial 41mm 2220.80 Box and Papers- $2,790 - Reserved post for u/3twellv

Omega - 2220.80 · $2,790
Up for sale is my Omega Seamaster 2220.80, a 41mm automatic co-axial cal 2500 movement watch in great condition.

  • Condition: 8.8/10 - great condition with minimal marks/hairlines
  • Case size: 41mm
  • Bracelet length: 7-7.25 inch (fits wrists up to 7.25 inches)
  • Shipping method: Fedex Priority Shipping
Posted at
Feb 2, 2026, 12:22 AM
Active
View listing on r/WatchExchange
[WTS][US] Omega Seamaster 300 Heritage - 41mm - Black Dial - 233.30.41.21.01.001

[US] Omega Seamaster 300 Heritage - 41mm - Black Dial - 233.30.41.21.01.001

Omega - 233.30.41.21.01.001 · $3,450
Up for sale is an Omega Seamaster 300 Heritage - 41mm watch with a black dial.

  • Condition: Fantastic condition with minor hairlines on case, clasp, and bracelet
  • Serial Date: 2023
  • Includes Links: true
Posted at
Jan 31, 2026, 10:39 AM
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[WTS] Omega Seamaster 300 $4470 233.30.41.21.01.001

Omega Seamaster 300 $4470 233.30.41.21.01.001

Omega - 233.30.41.21.01.001 · $4,470
Seamaster 300 for sale, details provided in the listing image link.

  • Price: Additional Details: Price $4470
Posted at
Jan 30, 2026, 10:00 AM
Active
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[WTS] Omega Seamaster 300 Steel Pumpkin Patina Lollipop Hand (Unpolished/Serviced)

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

Omega - 2913 · $10,500
An exceptional example of the early Omega Seamaster 300 Ref. 2913, preserved in beautiful condition.

  • Condition: Unpolished/Serviced
  • Year: 1958
  • Size: 39mm diameter
  • Movement Service: professionally serviced
Posted at
Jan 29, 2026, 5:03 PM
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[WTS] Omega Seamaster 300M Co-Axial 41mm 2220.80 Box and Papers- $2,790

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

Omega - 2220.80 · $2,790
Up for sale is my Omega Seamaster 2220.80, a 41mm automatic co-axial cal 2500 movement watch with steel case and original Omega steel bracelet.

  • Condition: 8.8/10 - minimal marks/hairlines, great condition
  • Case size: 41mm diameter
  • Movement type: co-axial cal 2500
  • Bracelet size: fits up to 7-7.25 inch wrists depending on wrist shape
Posted at
Jan 28, 2026, 8:10 PM
Active
View listing on r/WatchExchange
[WTS] 2023 Omega Seamaster 300 Summer blue 41mm 234.30.41.21.02.002 Full Set Excellent

2023 Omega Seamaster 300 Summer blue 41mm 234.30.41.21.02.002 Full Set Excellent

Omega - 234.30.41.21.03.002 · $5,950
The Omega Seamaster 300 is part of the Summer Blue Collection, a unique version with a varnished dial and deeper tone bezel.

  • Condition: Excellent
  • Size: 41mm diameter
  • Year: 2023
Posted at
Jan 28, 2026, 1:11 PM
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[WTS] Omega Seamaster 300M Co-Axial 2220.80 B&P 41mm- $2,850

Omega Seamaster 300M Co-Axial 2220.80 B&P 41mm- $2,850

Omega - 2220.80 · $2,850
Up for sale is my Omega Seamaster 2220.80, a 41mm automatic co-axial cal 2500 movement watch with a steel case and original Omega steel bracelet.

  • Condition: 8.7/10, great condition with minimal marks/hairlines on case, caseback, and bracelet
  • Case size: 41mm diameter
  • Movement: co-axial cal 2500
  • Water resistance: not specified
Posted at
Jan 26, 2026, 9:04 PM
Active
View listing on r/WatchExchange