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

Reference 233.20.41.21.01.002

About this watch

The Omega Seamaster 300 Master Co-Axial is a masterpiece of engineering and design, combining elegance with ruggedness. This timepiece boasts a stunning yellow gold and stainless steel combination, with a sleek black dial featuring stick and dot indexes for enhanced readability. The rotating bezel marked from 0 to 60 adds functionality, making it perfect for diving enthusiasts. At its heart lies the Omega caliber 8400 movement, boasting a self-winding mechanism, Co-Axial escapement, and resistance to magnetic fields greater than 15,000 gauss. With a power reserve of 60 hours and operating at 25,200 vibrations per hour, this movement is incredibly robust and designed for longevity. The watch features a sapphire crystal glass, ensuring durability and scratch-resistance. Weighing in with a comfortable heft, the Seamaster 300 feels substantial without being cumbersome. Its luxurious feel against the skin makes it perfect for both formal and casual occasions.
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MSRP: $12,600
Market Price: $6,557

Key Features

  • Omega caliber 8400 movement
  • Sapphire crystal glass
  • Water resistance: 300 meters
  • Stainless Steel and Yellow Gold case
  • 41.00 mm diameter
  • Co-Axial escapement
  • Magnetic field resistance >15,000 gauss

Specifications

Brand
Omega
Family
Seamaster 300
Model
Seamaster 300 Master Co-Axial Stainless Steel / Yellow Gold / Black / Bracelet
Reference
233.20.41.21.01.002
Movement
8400
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 Blue No Wave 212.30.41.20.03.001 (2017) Full Set

Omega Seamaster 300M Blue No Wave 212.30.41.20.03.001 (2017) Full Set

This is a clean and modern take on the classic Omega Seamaster Diver 300M, featuring a no-wave blue dial and aluminum bezel. It's a great everyday diver with strong wrist presence and proven reliability.

  • Condition: Good preowned condition with minor signs of use throughout
  • Case size: 41mm diameter
  • Movement: Automatic
  • Dial: Blue (no wave)
Posted at
Apr 12, 2026, 9:38 PM
Active
[WTS] Omega Seamaster 300m. Box, Cards. 210.30.42.20.06.001

Omega Seamaster 300m. Box, Cards. 210.30.42.20.06.001

A Omega Seamaster 300m with box and cards is being sold.

  • Box: yes
  • Cards: yes
Posted at
Apr 11, 2026, 11:03 AM
Active
[WTS] Omega Seamaster 300M Two-Tone White Wave – Full Size Automatic (Rare Config) – $3,200

Omega Seamaster 300M Two-Tone White Wave – Full Size Automatic (Rare Config) – $3,200

This Omega Seamaster 300M features a full-size ~41mm case, white wave dial, and two-tone steel + yellow gold. It is an early 90s model, running well and in great condition.

  • Condition: Running well, with light wear consistent with age
  • Case size: ~41mm
  • Movement: cal. 1109 Automatic
Posted at
Apr 10, 2026, 9:37 PM
Active
[WTS] Omega Seamaster 300M

Omega Seamaster 300M

Omega - Seamaster 300M · $4,500
This Omega Seamaster Diver 300M is a 42mm 2019 model that keeps good time, accompanied by its full box and papers. It includes both the bracelet and an Omega rubber strap.

  • Condition: Pre-owned with normal wear
  • Case size: 42mm diameter
  • Water resistance: 300m depth rating
Posted at
Apr 8, 2026, 7:15 PM
Active
[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 )

This Omega Seamaster 300 is a brand new, Master Chronometer-certified watch featuring a 42mm stainless steel case and orange accents on a mesh bracelet.

  • Condition: Brand new
  • Case size: 42mm diameter
  • Movement: 8806 Master Co-Axial
Posted at
Apr 8, 2026, 12:18 PM
Active
[WTS] Omega Seamaster 300M Black / Orange Diver 210.32.42.20.01.006 ( new / 2025 / box and papers )

Omega Seamaster 300M Black / Orange Diver 210.32.42.20.01.006 ( new / 2025 / box and papers )

This Omega Seamaster 300M Black / Orange Diver features a 42mm stainless steel case with an orange rubber strap and a black & orange dial. It comes complete with all boxes, papers, and booklet.

  • Condition: Brand new
  • Case size: 42mm diameter
  • Movement: 8806 Master Co-Axial
Posted at
Apr 8, 2026, 12:14 PM
Active
[WTS] Omega Seamaster 300M 42mm Black 210.30.42.20.01.001 ( new / 2025 / box and papers )

Omega Seamaster 300M 42mm Black 210.30.42.20.01.001 ( new / 2025 / box and papers )

This Omega Seamaster 300 is a brand new 42mm stainless steel watch with a black dial and bezel on a bracelet, complete with all original boxes, papers, and warranty.

  • Condition: Brand new
  • Case size: 42mm diameter
  • Movement: 8800 Master Co-Axial
Posted at
Apr 8, 2026, 12:10 PM
Active
[WTS] BNIB Omega Seamaster 300 ONLY $10k!

BNIB Omega Seamaster 300 ONLY $10k!

Omega - 210.60.42.20.99.001 · $10,000
A Brand new Omega Seamaster 300 is being listed for sale.

  • Condition: Brand new, full set
  • Rrp: $17.2k plus tax
Posted at
Apr 7, 2026, 4:32 PM
Active
[WTS] Omega Seamaster 300 Heritage - Mint Condition + 2 new straps

Omega Seamaster 300 Heritage - Mint Condition + 2 new straps

The Omega Seamaster 300 Heritage reference 234.30.41.21.03.001 is a modern reissue of Omega's classic dive watch with a beautiful blue sandwich dial and vintage-inspired design. It blends vintage aesthetics with Omega's modern Master Chronometer movement and METAS certification, making it one of the most compelling heritage divers on the market. The watch comes as a full set, still under Omega factory warranty.

  • Condition: Near Mint
  • Case diameter: 41mm
  • Movement type: Omega Master Chronometer automatic movement (Calibre 8912)
  • Certification: METAS certified Master Chronometer
Posted at
Apr 7, 2026, 12:18 PM
Active