Omega Seamaster Diver 300m Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Sedna Gold / Blue / Bracelet

Reference 210.20.42.20.03.002

Omega Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Sedna Gold / Blue / Bracelet

About this watch

The Omega Seamaster Diver 300M Master Co-Axial 42 is an exceptional watch that successfully merges style, functionality, and durability. Its stunning blue dial with Sedna gold accents is reminiscent of the deep ocean, while its robust stainless steel case and ceramic bezel provide a durable and scratch-resistant exterior. At the heart of this luxury timepiece lies the Omega caliber 8800, a self-winding movement featuring a Co-Axial escapement that increases accuracy and reduces friction. With a power reserve of 55 hours, Master Chronometer certification, and resistance to magnetic fields up to 15,000 gauss, this watch is both precise and reliable. The Seamaster Diver 300M boasts an impressive water resistance of 300m, making it perfect for diving or everyday wear. Whether you're an avid diver or simply appreciate fine craftsmanship, this watch is sure to impress with its versatility, style, and luxury appeal.
Buy Now on Jomashop
This is an affiliate link
MSRP: $12,700
Market Price: $7,610

Key Features

  • 42mm Stainless Steel Case
  • Sapphire Crystal Glass
  • 300m Water Resistance
  • Master Chronometer Certification
  • Omega Caliber 8800 Movement
  • Co-Axial Escapement
  • 55-Hour Power Reserve

Specifications

Brand
Omega
Family
Seamaster Diver 300m
Model
Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Sedna Gold / Blue / Bracelet
Reference
210.20.42.20.03.002
Movement
8800
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
42mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Omega Seamaster Diver 300M, black small wave dial 210.32.42.20.01.003

Omega Seamaster Diver 300M, black small wave dial 210.32.42.20.01.003

Omega - 210.32.42.20.01.003 · $5,000
A no date Omega Seamaster Diver 300M with a black small wave dial and domed sapphire crystal, featuring an aluminum insert.

  • Condition: LIKE NEW
  • Material: aluminum
  • Water resistance: 300m
Posted at
Apr 10, 2026, 12:59 PM
Active
View listing on r/WatchExchange
[WTS] 2018 Omega Seamaster Diver 300m 41mm Blue Dial Steel No Wave 212.30.41.20.03.001 B+P

2018 Omega Seamaster Diver 300m 41mm Blue Dial Steel No Wave 212.30.41.20.03.001 B+P

Omega - 212.30.41.20.03.001 · $3,600
A 2018 Omega Seamaster Diver 300M with a classic blue 'no wave' dial, stainless steel case and bracelet, and an automatic self-winding movement.

  • Condition: Excellent
  • Case diameter: 41mm
  • Crystal type: Sapphire
  • Bracelet material: Stainless Steel
Posted at
Apr 9, 2026, 5:41 PM
Active
View listing on r/WatchExchange
[WTS] 2023 Omega Seamaster Diver 300M 43.5mm Ref. 210.62.44.20.01.001

2023 Omega Seamaster Diver 300M 43.5mm Ref. 210.62.44.20.01.001

Omega - 210.62.44.20.01.001 · $6,200
This Omega Seamaster Diver 300M features a solid 18K Sedna™ gold case, ceramic 'Summer Blue' dial with gradient finish and laser-engraved wave pattern, and a 55-hour power reserve.

  • Condition: Excellent
  • Case Size: 43.5mm
  • Bezel Material: 18K Sedna gold
  • Water Resistance: 300m (1000ft)
Posted at
Apr 9, 2026, 4:37 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300m Black 210.32.42.20.01.003 2025

Omega Seamaster Diver 300m Black 210.32.42.20.01.003 2025

Omega - 210.32.42.20.01.003 · $4,995
For sale is a Omega Seamaster Diver 300m with black dial on rubber strap, delivered in pristine condition.

  • Condition: mint condition
  • Dial color: black
  • Strap material: rubber
Posted at
Apr 9, 2026, 1:06 PM
Active
View listing on r/WatchExchange
[WTS] *Very Rare Config* Omega Seamaster Diver 300M 168.1503 / 368.1503 Two-Tone White Wave Dial – Full Size 41mm Automatic

*Very Rare Config* Omega Seamaster Diver 300M 168.1503 / 368.1503 Two-Tone White Wave Dial – Full Size 41mm Automatic

Omega - 168.1503 / 368.1503 · $3,480
A very rare early 1990s Omega Seamaster Diver 300M in a full-size 41mm configuration with a white wave dial and automatic movement. It features classic Seamaster DNA such as skeleton hands and a helium escape valve.

  • Condition: Running well, with normal wear for its age
  • Case size: 41mm diameter
  • Movement: cal. 1109 automatic movement
  • Bracelet: original Omega bracelet
Posted at
Apr 8, 2026, 4:58 PM
Active
View listing on r/WatchExchange
[WTS] 2024 Omega Seamaster Diver 300m Blue Dial on Bracelet 210.30.42.20.03.001 B+P

2024 Omega Seamaster Diver 300m Blue Dial on Bracelet 210.30.42.20.03.001 B+P

Omega - 210.30.42.20.03.001 · $4,600
The Omega Seamaster Diver 300M reference number 210.30.42.20.03.001 features a stunning blue wave-pattern dial paired with a blue ceramic bezel, equipped with Omega’s Co-Axial Master Chronometer Caliber 8800 movement and offering exceptional precision, anti-magnetic protection, and an astounding 300-meter water resistance.

  • Condition: Excellent
  • Case Diameter: 42mm
  • Crystal: Sapphire
  • Bezel Material: Blue Ceramic
Posted at
Apr 8, 2026, 1:55 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300m Chronograph 44 210.30.44.51.03.001 Blue Dial

Omega Seamaster Diver 300m Chronograph 44 210.30.44.51.03.001 Blue Dial

Omega - 210.30.44.51.03.001 · $5,800
The Omega Seamaster Diver 300M Chronograph features a striking blue ceramic dial, matching bezel, and iconic modern design. It is powered by Omega's in-house Co-Axial Master Chronometer movement and has serious technical performance.

  • Condition: Very good condition
  • Case size: 44mm diameter
  • Movement: Omega Co-Axial Master Chronometer Automatic Chronograph
  • Dial color: Blue ceramic wave dial
Posted at
Apr 8, 2026, 1:53 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300m Black Dial Steel No Wave Reference 212.30.41.20.01.003 Box and Card dated 2019

Omega Seamaster Diver 300m Black Dial Steel No Wave Reference 212.30.41.20.01.003 Box and Card dated 2019

Omega - 212.30.41.20.01.003 · $3,527
This Omega Seamaster Diver features a black no wave dial and is in excellent condition with minimal signs of wear on the case, bracelet, and clasp.

  • Condition: Excellent
  • Case condition: Minimal signs of wear
  • Crystal condition: Clean, free of scratches, chips, and fleabites
  • Movement status: Running great, keeping time to spec
Posted at
Apr 8, 2026, 10:46 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M SMP 300M - in warranty

Omega Seamaster Diver 300M SMP 300M - in warranty

Omega - SMP 300M · $4,250
This Omega Seamaster Diver 300M is a well-maintained timepiece that runs perfectly and keeps excellent time. It comes with the original box, booklet, warranty card, and extra links.

  • Condition: Great condition with minor scratches/scuffs
  • Depth rating: 300m
  • Warranty expiration date: August 2027
  • Accessories included: original box, booklet, warranty card, extra links
Posted at
Apr 7, 2026, 8:10 PM
Active
View listing on r/WatchExchange