A serious dive watch with just the right amount of luxury — the Omega Seamaster Diver 300M Co-Axial Master Chronometer Chronograph ref. 210.20.44.51.01.001. This configuration combines stainless steel with 18K Sedna™ Gold, giving the classic Seamaster design a warmer and more elevated presence while still maintaining the rugged character that makes the Diver 300M such a great sports watch.
The black ceramic dial features Omega’s signature laser-engraved wave pattern, complemented beautifully by the Sedna™ Gold hands, hour markers, bezel details, and chronograph accents. At 44mm, this watch has substantial wrist presence, but the curved case and bracelet make it surprisingly comfortable. The two-register chronograph layout keeps the dial balanced and clean, while the ceramic bezel, helium escape valve, and 300-meter water resistance retain everything you expect from a true Seamaster.
Inside is Omega’s Co-Axial Master Chronometer Calibre 9900, a METAS-certified automatic chronograph movement with approximately 60 hours of power reserve and exceptional resistance to magnetic fields. This 2022 example comes as a full set with its original box and papers, making it a fantastic option for someone looking for a Seamaster with more presence and personality than the standard Diver 300M.
DETAILS
Basic Info
Brand: Omega
Collection: Seamaster
Model: Seamaster Diver 300M Co-Axial Master Chronometer Chronograph
Reference Number: 210.20.44.51.01.001
Movement: Automatic
Case Material: Stainless Steel / 18K Sedna™ Gold
Bracelet Material: Stainless Steel / 18K Sedna™ Gold
Year of Production: 2022
Condition: Used
Scope of Delivery: Full Set — Original Box and Original Papers
Gender: Men’s Watch/Unisex
Availability: Item is in stock
Caliber
Movement: Automatic
Caliber/Movement: Omega Co-Axial Master Chronometer Calibre 9900
Certification: METAS Master Chronometer
Power Reserve: Approximately 60 Hours
Case
Case Material: Stainless Steel / 18K Sedna™ Gold
Case Diameter: 44 mm
Water Resistance: 30 ATM / 300 Meters
Bezel: Unidirectional Rotating Bezel
Bezel Material: 18K Sedna™ Gold with Black Ceramic Bezel Ring
Crystal: Domed Scratch-Resistant Sapphire Crystal
Dial: Black Ceramic
Dial Details: Laser-Engraved Wave Pattern
Helium Escape Valve: Yes
Bracelet/Strap
Bracelet Material: Stainless Steel / 18K Sedna™ Gold
Bracelet Color: Steel / Sedna™ Gold
Clasp: Foldover Clasp with Comfort Setting and Diver Extension
Functions
Chronograph
Date
Small Seconds
Central Hours and Minutes
12-Hour and 60-Minute Chronograph Recorder
Unidirectional Dive-Time Bezel
Helium Escape Valve
A serious dive watch with just the right amount of luxury — the Omega Seamaster Diver 300M Co-Axial Master Chronometer Chronograph ref. 210.20.44.51.01.001. This configuration combines stainless steel with 18K Sedna™ Gold, giving the classic Seamaster design a warmer and more elevated presence while still maintaining the rugged character that makes the Diver 300M such a great sports watch.
The black ceramic dial features Omega’s signature laser-engraved wave pattern, complemented beautifully by the Sedna™ Gold hands, hour markers, bezel details, and chronograph accents. At 44mm, this watch has substantial wrist presence, but the curved case and bracelet make it surprisingly comfortable. The two-register chronograph layout keeps the dial balanced and clean, while the ceramic bezel, helium escape valve, and 300-meter water resistance retain everything you expect from a true Seamaster.
Inside is Omega’s Co-Axial Master Chronometer Calibre 9900, a METAS-certified automatic chronograph movement with approximately 60 hours of power reserve and exceptional resistance to magnetic fields. This 2022 example comes as a full set with its original box and papers, making it a fantastic option for someone looking for a Seamaster with more presence and personality than the standard Diver 300M.
DETAILS
Basic Info
Brand: Omega
Collection: Seamaster
Model: Seamaster Diver 300M Co-Axial Master Chronometer Chronograph
Reference Number: 210.20.44.51.01.001
Movement: Automatic
Case Material: Stainless Steel / 18K Sedna™ Gold
Bracelet Material: Stainless Steel / 18K Sedna™ Gold
Year of Production: 2022
Condition: Used
Scope of Delivery: Full Set — Original Box and Original Papers
Gender: Men’s Watch/Unisex
Availability: Item is in stock
Caliber
Movement: Automatic
Caliber/Movement: Omega Co-Axial Master Chronometer Calibre 9900
Certification: METAS Master Chronometer
Power Reserve: Approximately 60 Hours
Case
Case Material: Stainless Steel / 18K Sedna™ Gold
Case Diameter: 44 mm
Water Resistance: 30 ATM / 300 Meters
Bezel: Unidirectional Rotating Bezel
Bezel Material: 18K Sedna™ Gold with Black Ceramic Bezel Ring
Crystal: Domed Scratch-Resistant Sapphire Crystal
Dial: Black Ceramic
Dial Details: Laser-Engraved Wave Pattern
Helium Escape Valve: Yes
Bracelet/Strap
Bracelet Material: Stainless Steel / 18K Sedna™ Gold
Bracelet Color: Steel / Sedna™ Gold
Clasp: Foldover Clasp with Comfort Setting and Diver Extension
Functions
Chronograph
Date
Small Seconds
Central Hours and Minutes
12-Hour and 60-Minute Chronograph Recorder
Unidirectional Dive-Time Bezel
Helium Escape Valve
