Omega Seamaster Diver 300m Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Grey / Bracelet

Reference 210.30.42.20.06.001

Omega Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Grey / Bracelet

About this watch

The Omega Seamaster Diver 300M Master Co-Axial 42 is a stunning piece of horological craftsmanship that resonates with both watch enthusiasts and casual wearers alike. With its striking grey dial and robust construction, this model blends elegance with functionality. The design of the Seamaster Diver 300M is a perfect marriage of style and utility, featuring a 42 mm round case made from high-quality stainless steel and a ceramic bezel with a rotating 0-60 dive scale. At the core lies the Omega Caliber 8800, a self-winding movement certified as a Master Chronometer, guaranteed to provide precision and performance. With its impressive water resistance of up to 300 meters and Co-Axial escapement reducing friction between moving parts, this watch is built to last. It's an experience on your wrist that combines functionality with aesthetic appeal.
Buy Now on Jomashop
This is an affiliate link
MSRP: $5,900
Market Price: $3,814

Key Features

  • 42mm round case made from stainless steel
  • Ceramic bezel with rotating 0-60 dive scale
  • Omega Caliber 8800 self-winding movement
  • Master Chronometer certification
  • 300m water resistance
  • Co-Axial escapement reducing friction between moving parts
  • Sapphire crystal glass scratch-resistant

Specifications

Brand
Omega
Family
Seamaster Diver 300m
Model
Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Grey / Bracelet
Reference
210.30.42.20.06.001
Movement
8800
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
42mm
Dial Color
Grey
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Omega Seamaster Diver 300M 210.30.42.20.03.001 Blue 2022 Full Set - $4,395

Omega Seamaster Diver 300M 210.30.42.20.03.001 Blue 2022 Full Set - $4,395

Omega - 210.30.42.20.03.001 · $4,395
This Omega Seamaster Diver 300m Blue is a 2022 model, featuring a blue dial and coming with various accessories such as the inner and outer box, card holder, international warranty card, pictograms card, master chronometer card, and instructions manual. The watch has been thoroughly tested on a timegrapher and is running well without needing service.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2022
  • Contents: Watch, Inner & Outer Box, Card Holder, International Warranty Card, Pictograms Card, Master Chronometer Card, Instructions Manual
Posted at
Apr 4, 2026, 11:28 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M 42mm Two-Tone Blue Dial | Ref. 210.22.42.20.03.001 | 2023 | Full Set | Mint

Omega Seamaster Diver 300M 42mm Two-Tone Blue Dial | Ref. 210.22.42.20.03.001 | 2023 | Full Set | Mint

Omega - 210.22.42.20.03.001 · $6,450
The Omega Seamaster Diver 300M features a 42mm stainless steel case with solid 18K yellow gold accents, and is powered by the METAS-certified Co-Axial Master Chronometer Caliber 8800. This modern dive watch design delivers strong wrist presence while remaining versatile.

  • Condition: Mint
  • Case material: stainless steel and 18K yellow gold
  • Movement: Co-Axial Master Chronometer Caliber 8800 (METAS-certified)
  • Depth rating: 300M water resistance
Posted at
Apr 4, 2026, 3:19 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M Chronograph 44mm Ref. 210.22.44.51.03.001 | Full Set | Mint Condition

Omega Seamaster Diver 300M Chronograph 44mm Ref. 210.22.44.51.03.001 | Full Set | Mint Condition

Omega - 210.22.44.51.03.001 · $9,250
This Omega Seamaster Diver 300M Chronograph is a striking sport-luxury piece with strong wrist presence and everyday versatility, featuring a stainless steel case with 18K yellow gold accents and a blue ceramic bezel.

  • Condition: Mint condition
  • Case size: 44mm
  • Movement: Co-Axial Master Chronometer Caliber 9900 (METAS-certified, anti-magnetic)
  • Water resistance: 300M
Posted at
Apr 4, 2026, 2:04 AM
Active
View listing on r/WatchExchange
[WTS] OMEGA Seamaster Diver 300M "Paris 2024" Ref. 522.21.42.20.04.001 + Five Stripes "Paris 2024" NATO Strap - ULTIMATE SET! 🔥$7,900🔥

OMEGA Seamaster Diver 300M "Paris 2024" Ref. 522.21.42.20.04.001 + Five Stripes "Paris 2024" NATO Strap - ULTIMATE SET! 🔥$7,900🔥

OMEGA - 522.21.42.20.04.001 · $7,900
The Seamaster Diver 300M 'Paris 2024' is a luxurious tribute to sporting excellence, featuring a 42mm case combining stainless steel with OMEGA's exclusive 18K Moonshine Gold.

  • Condition: UNWORN
  • Case material: stainless steel with 18K Moonshine Gold
  • Bezel: laser-structured diving scale in positive relief
  • Dial finish: matte finished with polished waves
Posted at
Apr 3, 2026, 8:48 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300m

Omega Seamaster Diver 300m

Omega - 300M · $3,950
Up for sale is my Omega Seamaster Diver 300M in the gray dial/blue bezel configuration. It comes on the blue OEM rubber strap and looks brand new on the wrist.

  • Condition: LNIB/near-mint
  • Case material: unknown
  • Water resistance: 300m
Posted at
Apr 3, 2026, 3:23 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M Professional 300m 2542.80.00 41mm

Omega Seamaster Diver 300M Professional 300m 2542.80.00 41mm

Omega - 2542.80.00 · $1,800
This Omega Seamaster Diver 300M Professional is a distinctly turn-of-the-millennium edition with a printed dial configuration recalling earlier classic styles of the era. The dial features a marine grey blue hue paired with custard colored patina markers, and it has been well maintained despite its age.

  • Condition: Used with clear wear and light hand polish and scratches throughout
  • Case size: 41mm diameter
  • Water resistance: 300m depth rating
  • Bracelet length: 7.8in total length
Posted at
Apr 3, 2026, 12:07 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M, no date, black small wave dial 210.32.42.20.01.003

Omega Seamaster Diver 300M, no date, black small wave dial 210.32.42.20.01.003

Omega - 210.32.42.20.01.003 · $5,200
This Omega Seamaster Diver 300M features a no date display, black small wave dial, and a domed sapphire crystal. The watch has a charm that can only be felt in person and is complete with all original packaging.

  • Condition: LIKE NEW (98/100)
  • Case material: stainless steel
  • Band material: leather or metal (not specified)
  • Diameter: 42mm
Posted at
Apr 2, 2026, 11:18 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M (210.30.42.20.03.001)

Omega Seamaster Diver 300M (210.30.42.20.03.001)

Omega - 210.30.42.20.03.001 · $4,350
This Omega Seamaster Diver 300M features a blue dial/bezel on a steel bracelet, with boxes and papers included.

  • Condition: Very good condition with a few light marks
  • Case size: 42mm diameter
  • Bracelet material: Steel
  • Crystal type: Sapphire
Posted at
Apr 2, 2026, 6:53 AM
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 · $3,820
This is a rare, early 1990s Omega Seamaster Diver 300M in a full-size, 41mm automatic configuration featuring a white wave dial and yellow gold accents. It's one of the cleanest examples of this transitional-era piece with classic Seamaster DNA.

  • Condition: Normal wear for its age with light scratches on case/bracelet
  • Case size: 41mm diameter
  • Movement: cal. 1109 automatic movement
  • Bracelet type: Original Omega bracelet
Posted at
Apr 1, 2026, 8:45 PM
Active
View listing on r/WatchExchange