Omega Seamaster Diver 300m Seamaster Diver 300M Master Co-Axial 44 Chronograph Stainless Steel / Yellow Gold / Blue / Bracelet

Reference 210.20.44.51.03.001

About this watch

The Omega Seamaster Diver 300M Master Co-Axial 44 Chronograph is a luxurious timepiece that embodies elegance and performance. With its stunning blue dial, the watch is reminiscent of the deep ocean, making it perfect for a diver's watch. The combination of stick and dot indexes adds a modern touch, while the sword hands deliver both elegance and readability. The mix of stainless steel and yellow gold gives the Seamaster Diver 300M an opulent feel. The rotating bezel is not only functional for diving but also adds to the overall ruggedness of the timepiece. The open case back showcases the intricate workings of the Omega caliber 9900 movement, allowing you to appreciate the craftsmanship that goes into each piece. With a frequency of 28,800 vibrations per hour and a power reserve of up to 60 hours, this automatic chronograph movement is precise and reliable. The watch features METAS certification, ensuring high standards of precision and performance. With a water resistance of 300 meters, this watch is designed for serious divers and can confidently withstand the pressures of underwater exploration.
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Key Features

  • Omega caliber 9900 Movement
  • 44mm Diameter Stainless Steel Case
  • Sapphire Crystal Glass
  • Rotating Ceramic Bezel
  • METAS Certified Chronograph Movement
  • 300m Water Resistance
  • Stainless Steel and Yellow Gold Construction

Specifications

Brand
Omega
Family
Seamaster Diver 300m
Model
Seamaster Diver 300M Master Co-Axial 44 Chronograph Stainless Steel / Yellow Gold / Blue / Bracelet
Reference
210.20.44.51.03.001
Movement
9900
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph, Column wheel
  • Chronometer, Co-Axial Escapement
Case
44mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Omega Seamaster Diver 300M 42mm Grey Dial 210.30.42.20.06.001 | Full Set

Omega Seamaster Diver 300M 42mm Grey Dial 210.30.42.20.06.001 | Full Set

This Omega Seamaster Diver 300M is a 42mm grey dial watch with excellent timekeeping and flawless bezel and crystal.

  • Condition: Outstanding condition, minor wear marks on bracelet
  • Movement: Omega 8800
  • Bracelet size range: up to approximately 8.25 inches
  • Movement accuracy: -1 second per day
Posted at
Jan 21, 2026, 11:13 PM
Active
[WTS] OMEGA SEAMASTER DIVER 300M GREEN 'SEAWEED' - 210.32.42.20.10.001 - VERY GOOD - BOX/PAPERS - XTRA NEW AM FORSTNER BRACELET

OMEGA SEAMASTER DIVER 300M GREEN 'SEAWEED' - 210.32.42.20.10.001 - VERY GOOD - BOX/PAPERS - XTRA NEW AM FORSTNER BRACELET

A modern dive icon featuring a rich green ceramic dial and bezel, laser-engraved wave pattern, and OMEGA's legendary Co-Axial performance.

  • Condition: Very Good
  • Case size: 42mm diameter
  • Dial color: green
  • Bezel material: green ceramic
Posted at
Jan 18, 2026, 2:15 PM
Active
[WTS] OMEGA Seamaster Diver 300m - 42mm - Black Dial - Ref 210.32.42.20.01.001 - Full Set

OMEGA Seamaster Diver 300m - 42mm - Black Dial - Ref 210.32.42.20.01.001 - Full Set

This OMEGA Seamaster Diver 300m is a 42mm black dial watch featuring a domed scratch-resistant sapphire crystal and a self-winding movement with a power reserve of 55 hours. The watch has been worn daily for an engineering desk job.

  • Condition: Minor scratches from day-to-day movements, otherwise like new
  • Case Diameter: 42 mm
  • Thickness: 13.56 mm
  • Water Resistance: 300m / 1000 feet
Posted at
Jan 18, 2026, 12:44 PM
Active
[WTS] OMEGA Seamaster Diver 300M 36MM - 212.30.36.20.01.002

OMEGA Seamaster Diver 300M 36MM - 212.30.36.20.01.002

This 36mm OMEGA Seamaster Diver 300M is in excellent used condition with minor signs of wear.

  • Condition: excellent used condition with minor signs of wear
  • Case size: 36mm
  • Water resistance: 300m
Posted at
Jan 17, 2026, 7:44 PM
Active
[WTS] Omega Seamaster Diver 300m 44mm 210.60.44.51.03.001 Blue Dial Titanium 18k Rose Gold MINT CONDITION

Omega Seamaster Diver 300m 44mm 210.60.44.51.03.001 Blue Dial Titanium 18k Rose Gold MINT CONDITION

Omega - 210.60.44.51.03.001 · $14,250
The Omega Seamaster Diver 300m Chronograph features a laser-ablated 18k rose gold bezel paired with a high polish blue ceramic dial and chronograph complications. It has 300 meters of water resistance and is powered by Omegas Co-Axial Master Chronometer Calibre 9900.

  • Condition: Amazing Pre-Owned condition, showing no sings of wear, clean crystal and case.
  • Case size: 44mm
  • Movement type: Automatic (Self Winding)
  • Power reserve: 72hrs
Posted at
Jan 17, 2026, 3:03 PM
Active
[WTS] OMEGA Seamaster Diver 300M "Paris 2024" Ref. 522.21.42.20.04.001 + Five Stripes "Paris 2024" NATO Strap - ULTIMATE SET! 🔥$8250🔥

OMEGA Seamaster Diver 300M "Paris 2024" Ref. 522.21.42.20.04.001 + Five Stripes "Paris 2024" NATO Strap - ULTIMATE SET! 🔥$8250🔥

The OMEGA Seamaster Diver 300M 'Paris 2024' is a luxurious tribute to sporting excellence, featuring a 42mm case with stainless steel and 18K Moonshine Gold. The watch has a white ceramic dial, laser-structured diving scale, and custom typography on the date disc.

  • Condition: UNWORN
  • Case size: 42mm diameter
  • Movement: Calibre 8800 Master Chronometer
  • Depth rating: 300m
Posted at
Jan 16, 2026, 5:46 PM
Active
[WTS] Omega Seamaster Diver 300M 41mm Blue 212.30.41.20.03.001 B&P $3700

Omega Seamaster Diver 300M 41mm Blue 212.30.41.20.03.001 B&P $3700

a Seamaster Diver 300M in blue, measuring 41mm in diameter.

Posted at
Jan 15, 2026, 9:51 PM
Active
[WTS] Omega Seamaster Diver 300M 212.30.41.20.03.001 – Blue No-Wave 41mm– Box & Papers - $3499 Shipped

Omega Seamaster Diver 300M 212.30.41.20.03.001 – Blue No-Wave 41mm– Box & Papers - $3499 Shipped

For sale is a 2018 Omega Seamaster Diver 300M with the blue no-wave dial.

  • Condition: Light wear throughout, no dings on case, caseback, or bezel
  • Case diameter: 41mm
  • Water resistance depth rating: 300m
  • Movement type: Co-Axial Calibre 2500
Posted at
Jan 15, 2026, 12:47 AM
Active