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.

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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

Omega Seamaster SMP300 - Silver Dial - 42mm - 210.30.42.20.06.001

Omega - 210.30.42.20.06.001 · $3,850

This Omega Seamaster SMP300 features a silver dial, 42mm case size and is in excellent mechanical working order.

Condition: Fantastic condition with minor, if any hairlines on clasp and case.
Case Size: 42mm
Diameter: 42mm

Posted at

Feb 13, 2026, 8:00 AM

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Omega Seamaster SMP300 - Silver Dial - 42mm - 210.30.42.20.06.001

Omega - 210.30.42.20.06.001 · $3,875

Up for sale is an Omega Seamaster SMP300 - Silver Dial - 42mm, which functions perfectly mechanically and includes watch only (10 full links).

Condition: Fantastic condition with minor wear
Case Size: 42mm diameter
Serial Date: 2021

Posted at

Feb 6, 2026, 8:13 AM

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Omega Seamaster Diver 300m Chrome Grey 210.30.42.20.06.001 + Straps Warranty

Omega - 210.30.42.20.06.001 · $3,950

This Omega Seamaster Diver 300m features a stunning PVC Chrome Grey dial, comes in great shape with only light signs of wear, and is delivered as a fully complete 2019 dated set.

Condition: near mint condition
Diameter: 42mm
Depth rating: 300m
Warranty: 1 year

Posted at

Feb 20, 2025, 11:35 AM

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2023 Omega Seamaster Diver 300M 42mm 210.30.42.20.06.001 Full Set Excellent

Omega - 210.32.42.20.06.001 · $4,595

This is a modern Omega Seamaster Diver 300M watch with iconic styling, featuring a grey wave dial and blue ceramic bezel.

Condition: Excellent
Year: 2023
Contents: Full Set

Posted at

Feb 7, 2026, 12:41 PM

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2025 Omega Seamaster Diver 300M 42mm 210.30.42.20.01.010 Complete Set Mint

Omega - 210.30.42.20.01.010 · $6,375

This is a 2025 Omega Seamaster Diver 300M with a classic black-dial wave configuration, METAS-certified performance, and a steel mesh bracelet.

Condition: Excellent
Year: 2025
Bracelet material: steel
Diameter: 42mm

Posted at

Feb 19, 2026, 11:59 AM

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Omega Seamaster Diver 300M Grey Dial on Blue Rubber Full Box & Papers Complete Set

Omega - 210.32.42.20.06.001 · $4,200

The Omega Seamaster Diver 300M features a grey dial and comes with a blue rubber strap, full box, and papers.

Condition: Very good, retail ready
Box And Papers: full set including outer & inner box, all 3 cards, and an Omega travel bag
Included Accessories: blue rubber strap

Posted at

Feb 18, 2026, 9:43 PM

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Omega Seamaster Diver 300M White Dial 42mm Co-Axial Master Chronometer

Omega - Diver 300M

Posted at

Feb 18, 2026, 7:32 PM

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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' features a 42mm case combining stainless steel with 18K Moonshine Gold, a laser-structured diving scale, and a matte-finished white ceramic dial. It's powered by the Calibre 8800 Master Chronometer.

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

Posted at

Feb 17, 2026, 10:56 PM

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2021 Omega Seamaster Diver 300M 42mm Titanium Bond NTTD 210.92.42.20.01.001 Full Set

Omega - 210.92.42.20.01.001 · $7,500

2021 Omega Seamaster Diver 300M 42mm Titanium watch from the No Time To Die 007 Edition, featuring a brown tropical aluminium dial and rotating dive bezel.

Condition: Nice preowned condition with light scratches on the case, bezel and bracelet
Case dimensions: 42mm diameter
Band material: Titanium Mesh Bracelet and Unused Bond Nato Strap
Max wrist size: 8.25 in.

Posted at

Feb 17, 2026, 8:22 PM

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