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

Reference 234.30.41.21.01.001

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 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

Omega - 234.30.41.21.01.001 $6,495
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 Heritage 300 234.30.41.21.01.001 Box Papers 馃寠

Omega Seamaster Heritage 300 234.30.41.21.01.001 Box Papers 馃寠

Omega - 234.30.41.21.01.001 $4,788
This vintage-inspired Omega Seamaster Heritage 300 is in very good condition, featuring desk diving marks on the clasp and minor fleabites between 9 and 12 on the inner bezel ring.

  • Condition: very good condition, desk diving marks on the clasp
Posted at
Feb 5, 2026, 5:01 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

Omega - 234.30.41.21.01.001 $6,845
The Omega Seamaster 300 Heritage is a vintage-inspired watch with modern features, featuring a black dial, broad arrow hands, and a steel case.

  • Condition: Excellent
  • Case material: steel
  • Bracelet: matching steel bracelet
  • Box set included: yes
Posted at
Feb 2, 2026, 7:32 PM
Active
[WTS] Omega Seamaster 300 2920.80.91 鈥淐asino Royale鈥滲ox and Papers

Omega Seamaster 300 2920.80.91 鈥淐asino Royale鈥滲ox and Papers

Omega - 2920.80.91 $3,450
This Omega Seamaster Professional is the same watch used in the first Daniel Craig Bond movie 'Casino Royale'. It comes with a stainless steel bracelet and features a good-condition case.

  • Condition: Good with minor imperfections (clasp scuffing)
  • Bracelet material: Stainless steel
  • Case condition: Good
  • Movement accuracy: -2 to -7 seconds per day (timegrapher)
Posted at
Feb 13, 2026, 3:11 PM
Active
[WTS] Omega Seamaster 300 Professional 41mm $3735

Omega Seamaster 300 Professional 41mm $3735

a 41mm Omega Seamaster 300 Professional for sale

  • 41mm: diameter
Posted at
Feb 13, 2026, 9:01 AM
Active
[WTS] Omega Seamaster 300m Automatic 2253.80 36.25mm

Omega Seamaster 300m Automatic 2253.80 36.25mm

Omega - 2253.80 $1,950
This Omega Seamaster 300m Automatic has been the seller's daily driver for two years, having accompanied them on various activities and travels while maintaining reliable timekeeping.

  • Condition: Used with signs of wear
  • Year: 2006
Posted at
Feb 12, 2026, 7:30 PM
Active
[WTS] Omega Seamaster 300m Peter Blake 41mm Quartz 2264.50

Omega Seamaster 300m Peter Blake 41mm Quartz 2264.50

Omega - 2264.50 $2,399
This Omega Seamaster 300m Peter Blake is a quartz-powered timepiece featuring a 41mm case and a 7" bracelet.

  • Condition: like new/fresh polish
  • Bracelet length: 7 inches
Posted at
Feb 12, 2026, 4:21 PM
Active
[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 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