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 300 Heritage 41mm 234.30.41.21.01.001 - Excellent Condition

Omega Seamaster 300 Heritage 41mm 234.30.41.21.01.001 - Excellent Condition

Omega - 234.30.41.21.01.001 · $4,800
This Omega Seamaster 300 Heritage model features a 41mm case size and is in excellent condition. The watch comes with almost full kit, including box and papers, all bracelet links, but no warranty card.

  • Condition: Excellent, with superficial scratches on clasp and bracelet
  • Case diameter: 41mm
  • Movement rating: +2 sec/day after Omega service
  • Bracelet links: All included
Posted at
Dec 1, 2025, 10:30 PM
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[WTS] Iconic Diver: Omega Seamaster 300M Blue - 2025 - Unworn

Iconic Diver: Omega Seamaster 300M Blue - 2025 - Unworn

Omega - 210.30.42.20.03.001 · $4,400
The Omega Seamaster Diver 300M Co-Axial Master Chronometer features a deep blue ceramic dial with laser-engraved waves, 42mm stainless steel case, and a blue ceramic bezel. It includes Omega's METAS-certified Caliber 8800 and has 300 meters of water resistance.

  • Condition: Unworn
  • Case diameter: 42mm
  • Water resistance: 300m
  • Movement: Caliber 8800
Posted at
Dec 14, 2025, 2:28 PM
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[WTS] OMEGA Seamaster 300M - Blue Wave Dial

OMEGA Seamaster 300M - Blue Wave Dial

OMEGA - 210.30.42.20.03.001 · $3,950
This OMEGA Seamaster Diver 300M features a blue wave dial and is part of the current-generation redesign with ceramic bezel and METAS-certified Master Chronometer movement.

  • Condition: Pre-owned, excellent condition with minimal handling wear
  • Case size: 42mm diameter
  • Bezel material: ceramic
  • Movement certification: METAS-certified Master Chronometer
Posted at
Dec 14, 2025, 11:31 AM
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[wts] LIKE NEW MAR 2025 Omega Seamaster 300M Ceramic and titanium 43.5mm 210.92.44.20.01.002

LIKE NEW 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 2025 Omega Seamaster 300M with ceramic and titanium construction, featuring a 43.5mm case.

  • Condition: Near mint
  • Case material: ceramic and titanium
  • Case size: 43.5mm
  • Strap type: authentic Omega rubber
Posted at
Dec 13, 2025, 6:56 PM
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[WTS] Omega Seamaster 300M - 41mm No Wave Black - 212.30.41.20.01.003 - $2,495 Shipped

Omega Seamaster 300M - 41mm No Wave Black - 212.30.41.20.01.003 - $2,495 Shipped

Omega - 212.30.41.20.01.003 · $2,495
Beautiful example of a discontinued Omega Seamaster Diver 300M 'black no-wave' in 41mm case.

  • Condition: great preowned condition
  • Case Size: 41mm
  • Thickness: .6mm thinner than the newer Seamaster
  • Bracelet Condition: very clean
Posted at
Dec 13, 2025, 5:45 PM
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[WTS] Omega Seamaster 300 212.30.41.20.01.003 Authenticated in Box

Omega Seamaster 300 212.30.41.20.01.003 Authenticated in Box

Omega - 212.30.41.20.01.003
  • Condition: Authenticated in Box
  • Authentication: authenticated by Omega
Posted at
Dec 12, 2025, 9:40 AM
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[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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