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

Reference 234.32.41.21.01.001

About this watch

The Omega Seamaster 300 Master Chronometer is a luxurious dive watch that combines functionality with aesthetics. Its sleek design and impressive specifications make it a statement piece on the wrist. The 41mm round case made of stainless steel strikes a perfect balance between robustness and elegance, while the matte black finish gives it a stealthy look. The watch features a sapphire crystal, METAS-certified automatic movement, and a Co-Axial escapement that reduces friction and enhances longevity. With a water resistance rating of 300 meters, this watch is perfect for professional divers and casual swimmers alike. It's a versatile timepiece that can easily transition from day to night, making it suitable for both underwater exploration and formal occasions.
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MSRP: $6,700
Market Price: $4,573

Key Features

  • 41mm round stainless steel case
  • Sapphire crystal for added durability
  • METAS-certified Omega caliber 8912 automatic movement
  • Co-Axial escapement for reduced friction and enhanced longevity
  • 300-meter water resistance rating
  • Rotating bezel marked from 0 to 60
  • 21mm lug width for comfortable fit

Specifications

Brand
Omega
Family
Seamaster 300
Model
Seamaster 300 Master Chronometer Stainless Steel / Black / Strap
Reference
234.32.41.21.01.001
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 Master Co-Axial Titanium Blue Dial 233.90.41.21.03.001 Full Kit $4,650

Omega Seamaster 300 Master Co-Axial Titanium Blue Dial 233.90.41.21.03.001 Full Kit $4,650

Up for sale is an Omega Seamaster 300 Master Co-Axial in titanium with a blue sandwich dial, featuring an automatic movement and a 300m water resistance.

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 41mm
  • Movement: Omega Master Co-Axial Caliber 8400 automatic movement
  • Water resistance: 300m
Posted at
Apr 6, 2026, 10:07 PM
Active
[WTS] Omega Seamaster 300M 210.30.42 Blue Dial 42mm - $3,450

Omega Seamaster 300M 210.30.42 Blue Dial 42mm - $3,450

Omega - 210.30.42 · $3,450
Up for sale is my Omega Seamaster Blue dial 210.30.42, measuring at 42mm with an automatic Calibre Omega 8800 movement.

  • Condition: great condition, 8.9/10 exterior
  • Movement: automatic Calibre Omega 8800
  • Case size: 42mm diameter
  • Case material: steel
Posted at
Apr 6, 2026, 9:45 PM
Active
[WTS] Omega Seamaster 300m Professional Black Ceramic 210.30.42.20.01.001

Omega Seamaster 300m Professional Black Ceramic 210.30.42.20.01.001

This Omega Seamaster 300m Professional features a black ceramic case, comes with both OEM bracelet and rubber strap, and is accompanied by box and papers.

  • Condition: Pre-owned with minor scratches
  • Case Material: black ceramic
  • Bracelet: OEM
  • Strap: rubber
Posted at
Apr 6, 2026, 8:12 PM
Active
[WTS] Omega Seamaster 300M Co-Axial 41mm 2220.80 Box and Card - $2,950

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

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

  • Condition: 8.9/10, great condition with minimal marks/hairlines on the case, caseback, and bracelet
  • Movement: automatic co-axial cal 2500
  • Bracelet size range: 7-7.25 inch, depending on wrist shape
Posted at
Apr 5, 2026, 10:13 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 Seamaster 300m with box and cards, available for sale

  • Box Papers: yes
  • Location: NJ USA
Posted at
Apr 4, 2026, 10:04 AM
Active
[WTS] Omega Seamaster 300M

Omega Seamaster 300M

Omega - 300M · $5,250
A pre-owned Omega Seamaster 300M with original links, box and papers, extra silicone bracelet, and a comfort issue.

  • Condition: Pre-owned with visible signs of wear on the bracelet
  • Bracelet condition: Visible signs of wear
  • Extra accessories: Original links, extra omega silicone bracelet, box, papers
Posted at
Apr 3, 2026, 10:12 PM
Active
[WTS] Omega Seamaster 300M Seaweed Green Wave Bracelet & Rubber Boxed Set Ref 210.30.42.20.10.001 SUPER CLEAN & PRICED TO MOVE

Omega Seamaster 300M Seaweed Green Wave Bracelet & Rubber Boxed Set Ref 210.30.42.20.10.001 SUPER CLEAN & PRICED TO MOVE

The Omega Seamaster 300M features a stunning wave dial in Seaweed Green, paired with a matching green ceramic bezel and a 42MM stainless case. It comes with its original Omega bracelet and a matching green rubber strap.

  • Condition: Super clean, some very light scratches seen under macro
  • Case diameter: 42MM
  • Movement caliber: 8800
  • Bracelet material: stainless steel
Posted at
Apr 3, 2026, 8:17 PM
Active
[WTS] Omega Seamaster 300 Blue 234.30.41.21.03.001 COMPLETE SET

Omega Seamaster 300 Blue 234.30.41.21.03.001 COMPLETE SET

This Omega Seamaster 300 is a blue-dialed watch in excellent condition, complete with its warranty card dated 2023.

  • Condition: great condition with some light wear
  • Payment methods: crypto, bank transfer, etc.
  • Warranty card date: 2023
  • Location: southwest FL
Posted at
Apr 3, 2026, 10:16 AM
Active
[WTS] 2020 Omega Seamaster 300 41mm Titanium Blue Dial 233.90.41.21.03.001 Full Set

2020 Omega Seamaster 300 41mm Titanium Blue Dial 233.90.41.21.03.001 Full Set

2020 Omega Seamaster 300 in titanium with a blue dial, featuring an automatic mechanical movement and a stainless steel bracelet.

  • Condition: Nice preowned condition with some very light scratches
  • Case material: Titanium
  • Case dimensions: 41mm diameter
  • Bezel material: Titanium
Posted at
Apr 2, 2026, 1:24 PM
Active