Omega Seamaster Diver 300m Seamaster Diver 300M Master Co-Axial 42 Swiss Armed Forces

Reference 210.30.42.20.01.003

About this watch

The Omega Seamaster Diver 300M Master Co-Axial 42 Swiss Armed Forces is a luxury watch that embodies the essence of precision, style, and adventure. Its sleek black ceramic bezel rotates for precise timing, while its round shape gives it a classic vibe. The black dial features stick and dot indexes for optimal readability, protected by a sapphire crystal. At its heart lies the Omega caliber 8806 movement, certified as a Master Chronometer with resistance to magnetic fields up to 15,000 gauss. With a water resistance rating of 300 meters and a limited edition of only 50 units produced, this watch is not just a timekeeper but also a collector's item. Its stainless steel bracelet is both sturdy and comfortable, making it perfect for all-day wear. Whether you're exploring the ocean or enjoying a night out, this watch ticks all the right boxes.

Buy Now on Jomashop

This is an affiliate link

Key Features

Omega caliber 8806 movement
300m water resistance
Limited edition of only 50 units produced
Sapphire crystal protection
Stainless steel bracelet
Master Chronometer certification
Resistance to magnetic fields up to 15,000 gauss

Specifications

Brand

Omega

Family

Seamaster Diver 300m

Model

Seamaster Diver 300M Master Co-Axial 42 Swiss Armed Forces

Reference

210.30.42.20.01.003

Movement

8806

Movement Features

Hours, Minutes, Seconds
Chronometer, Co-Axial Escapement

Case

Stainless Steel 42mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

Omega Seamaster Diver 300M, 2020, 42mm, 210.32.42.20.03.001, Full set

Omega - 210.32.42.20.03.001 · $6,200

Case diameter: 42mm

Posted at

Apr 20, 2026, 8:55 AM

Active

View listing on r/WatchExchange

OMEGA Seamaster Diver 300M 210.32.42.20.04.001 Box And Papers+ Original Receipt $4300+ 🏷️

OMEGA - 210.32.42.20.04.001 · $4,300

The Omega Seamaster Diver 300M is a 42mm watch featuring a white dial with waves, 300 meter water resistance, and an 8800 movement.

Condition: Excellent, small scratches on bezel groove
Case size: 42mm
Water resistance: 300m
Movement: 8800

Posted at

Apr 19, 2026, 9:31 PM

Active

View listing on r/WatchExchange

Omega SMP 300 Seamaster Diver 300M America's Cup on Rubber Strap 210.32.42.20.04.002

Omega - 210.32.42.20.04.002 · $4,900

A Omega Seamaster Diver 300M America's Cup on a rubber strap with a red tipped hand and full deployment buckle.

Condition: Excellent condition
Strap material: rubber

Posted at

Apr 19, 2026, 7:33 PM

Active

View listing on r/WatchExchange

2025 OMEGA Seamaster Diver 300m 210.32.42.20.01.001 42mm Stainless Steel COMPLETE SET w/ Extra Strap

OMEGA - 210.32.42.20.01.001 · $4,950

The OMEGA Seamaster Diver 300m is a popular dive watch with a 42mm stainless steel case and black wave dial. It features a black ceramic bezel and comes with two strap options. The watch is powered by OMEGA's in-house coaxial movement, offering 55 hours of power reserve.

Condition: Excellent 'Like New' Condition
Case size: 42mm
Case material: Stainless Steel
Bezel material: Black Ceramic

Posted at

Apr 19, 2026, 4:48 PM

Active

View listing on r/WatchExchange

Omega Seamaster Diver 300M James Bond 60th Anniversary 210.30.42.20.03.002 $6,999

Omega - 210.30.42.20.03.002 · $6,999

This Omega Seamaster Diver 300M is a special edition celebrating the James Bond 60th Anniversary, featuring a reliable Omega Calibre 8806 and COSC and METAS certifications.

Condition: Preowned - Excellent
Case size: 42mm
Movement: Omega Calibre 8806
Water resistance: 300m

Posted at

Apr 19, 2026, 10:06 AM

Active

View listing on r/WatchExchange

2026 Omega Seamaster Diver 300M Green 30.42.20.10.001

Omega - 30.42.20.10.001 · $5,200

2026 Omega Seamaster Diver 300M Green, in excellent condition and keeping perfect time. Comes with a bracelet and an Omega rubber strap.

Condition: Excellent
Warranty Date: 2/14/26
Strap Change Marks: minor marks under the lugs
Bracelet Wear: little wear

Posted at

Apr 19, 2026, 9:10 AM

Active

View listing on r/WatchExchange

Omega Seamaster Diver 300M Blue Wave Dial | Ref. 210.30.42.20.03.001 | 42mm | Stainless Steel | Full Set | 2025

Omega - 210.30.42.20.03.001

A Omega Seamaster Diver 300M with a blue wave dial and 42mm stainless steel case.

Case size: 42mm diameter
Materials: Stainless Steel

Posted at

Apr 18, 2026, 11:57 AM

Active

View listing on r/WatchExchange

Omega Seamaster Diver 300M "Sedna Gold & Blue" | 18K Rose Gold Ref. 210.22.42.20.03.002 | 42mm | Stainless Steel & Gold | Full Set | 2023

Omega - 210.22.42.20.03.002

Material: 18K Rose Gold, Stainless Steel & Gold
Size: 42mm diameter
Year: 2023

Posted at

Apr 18, 2026, 11:45 AM

Active

View listing on r/WatchExchange

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 OMEGA Seamaster Diver 300M 'Paris 2024' Ref. 522.21.42.20.04.001 is a luxurious tribute to sporting excellence, combining stainless steel with 18K Moonshine Gold and featuring a laser-structured diving scale and custom typography on the date disc.

Condition: [UNWORN]
Material: stainless steel and 18K Moonshine Gold
Case size: 42mm diameter
Movement: Calibre 8800 Master Chronometer

Posted at

Apr 17, 2026, 10:01 PM

Active

View listing on r/WatchExchange