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 James Bond No Time To Die NTTD 210.90.42.20.01.001 ( new / 2025 / box and papers )

Omega Seamaster 300 James Bond No Time To Die NTTD 210.90.42.20.01.001 ( new / 2025 / box and papers )

Omega - 210.90.42.20.01.001 · $8,850
This listing is for a brand new Omega Seamaster 300 James Bond No Time To Die reference # 210.90.42.20.01.001, coming with all original packaging and documentation.

  • Condition: Brand new
  • Case material: Titanium
  • Case size: 42mm diameter
  • Warranty date: 2025
Posted at
Apr 27, 2026, 1:15 PM
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[WTS] Omega Seamaster 300M James Bond 60th Anniversary 210.30.42.20.03.002 ( new / 2025 / box and papers )

Omega Seamaster 300M James Bond 60th Anniversary 210.30.42.20.03.002 ( new / 2025 / box and papers )

Omega - 210.30.42.20.03.002 · $7,750
Up for sale is a brand new Omega Seamaster 300M 007 James Bond 60th Anniversary, reference # 210.30.42.20.03.002.

  • Condition: Brand new
  • Case size: 42mm
  • Movement: Omega 8806 Calibre
Posted at
Apr 27, 2026, 1:08 PM
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[WTS] Omega Seamaster 300M Co-Axial 2220.80 41mm Box and Papers - $2,950

Omega Seamaster 300M Co-Axial 2220.80 41mm Box and Papers - $2,950

Omega - 2220.80 · $2,950
Up for sale is my Omega Seamaster 2220.80, a 41mm automatic co-axial cal 2500 movement watch in great condition.

  • Condition: 8.9/10, great condition with minimal marks/hairlines on the case, caseback, and bracelet
  • Movement: co-axial cal 2500
  • Bracelet size compatibility: 7 - 7.25 inch wrists
  • Shipping method: Fedex Priority Shipping
Posted at
Apr 26, 2026, 10:01 PM
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[WTS] Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,250

Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,250

Omega - 2222.80 · $2,250
This Omega Seamaster 300M Co-Axial Mid-size 36mm features an automatic co-axial cal 2500 movement and a steel case on original Omega steel bracelet.

  • Condition: 8.9/10 - great condition with minimal marks/hairlines on case, caseback, bracelet, and Bezel insert.
  • Case size: 36mm
  • Movement: co-axial cal 2500
  • Bracelet size: 7-7.25 inch wrists
Posted at
Apr 26, 2026, 9:56 PM
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[WTS] Omega Seamaster 300 41mm Blue – Full Set – Excellent Condition – $3,300

Omega Seamaster 300 41mm Blue – Full Set – Excellent Condition – $3,300

Omega - 212.30.41.20.03.001 · $3,300
A beautiful Omega Seamaster 300 with a blue dial, one of Omega's most iconic and reliable dive watches, in excellent overall condition.

  • Condition: Used – Very Good (9/10)
  • Case size: 41mm
  • Dial color: Blue
  • Crystal condition: Clean with no scratches
Posted at
Apr 26, 2026, 8:43 PM
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[WTS] Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,190

Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,190

Omega - 2222.80 · $2,190
The Omega Seamaster 300M Co-Axial Mid-size is a 36mm automatic watch with an Omega co-axial cal 2500 movement. It features a steel case on original Omega steel bracelet and has all functions working well.

  • Condition: Very good (8.9/10)
  • Case size: 36mm
  • Movement type: co-axial cal 2500
  • Bracelet length: up to 7-7.25 inch wrists
Posted at
Apr 23, 2026, 9:45 PM
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[WTS] Omega Seamaster 300 Vintage Super Complete Kit Ref. 165.024

Omega Seamaster 300 Vintage Super Complete Kit Ref. 165.024

Omega - 165.024
A vintage Omega Seamaster 300 is being sold as a complete kit with its original documents dating back to January 23, 1970.

  • Type: Seamaster 300 Vintage Super Complete Kit
Posted at
Apr 23, 2026, 6:13 PM
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[WTS] Omega Seamaster 300m Full kit- $4250

Omega Seamaster 300m Full kit- $4250

Omega - 300m 42mm · $4,250
A complete Omega Seamaster 300m full kit, featuring a 42mm case size, undated card and purchase receipt from 2021. It runs well on timegrapher and is overall in good pre-owned condition.

  • Condition: good pre owned condition
  • Water Resistance: 300m depth rating
Posted at
Apr 23, 2026, 3:30 PM
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[WTS] Omega Seamaster 300M Black Aluminum / Orange 210.30.42.20.01.018 ( new / 2025 / box and papers )

Omega Seamaster 300M Black Aluminum / Orange 210.30.42.20.01.018 ( new / 2025 / box and papers )

Omega - 210.30.42.20.01.018 · $6,200
This Omega Seamaster 300M is a brand new watch with a black aluminum dial and orange accents, featuring a master co-axial movement and a stainless steel case.

  • Condition: Brand new
  • Case size: 42mm diameter
  • Movement type: Master Co-Axial
Posted at
Apr 23, 2026, 2:00 PM
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