Omega Seamaster Diver 300m Seamaster Diver 300M Master Co-Axial 42 No-Date Stainless Steel / Black - Orange / Mesh

Reference 210.30.42.20.01.018

Omega Seamaster Diver 300M Master Co-Axial 42 No-Date Stainless Steel / Black - Orange / Mesh

About this watch

The OMEGA Seamaster Diver 300M 210.30.42.20.01.018 debuted in 2025. This model is part of the updated Diver 300M generation, featuring a black aluminium dial with orange accents, including the central seconds hand, quarter-hour indexes, and Seamaster logo. The oxalic anodised aluminium bezel ring includes a diving scale in white Super-LumiNova, complementing the dial’s rhodium-plated skeletonised hands and indexes, also filled with white Super-LumiNova. The 42 mm stainless steel case is equipped with a domed sapphire crystal, helium escape valve at 10 o’clock, and transparent case back. It houses the Co-Axial Master Chronometer calibre 8806, certified by METAS for precision, magnetic resistance, and overall performance. This version is fitted with a stainless steel mesh bracelet and folding clasp. A second version with orange rubber strap is also available.

Buy Now on Jomashop

This is an affiliate link

Specifications

Brand

Omega

Family

Seamaster Diver 300m

Model

Seamaster Diver 300M Master Co-Axial 42 No-Date Stainless Steel / Black - Orange / Mesh

Reference

210.30.42.20.01.018

Movement

8806

Movement Features

Hours, Minutes, Seconds
Chronometer, Co-Axial Escapement

Case

42mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

Omega Seamaster Diver 300M Black Dial 41mm 2016 Box & Papers - $3,200

Omega - Seamaster Diver 300M Black Dial 41mm 2016 · $3,200

Condition: Excellent
Case size: 41mm diameter
Water resistance: 300m depth rating
Movement type: Omega automatic movement

Posted at

Mar 21, 2026, 12:13 PM

Active

View listing on r/WatchExchange

Omega Seamaster Diver 300m 18k Sedna Gold 210.22.42.20.01.002 $4,850

Omega - 210.22.42.20.01.002 · $4,850

A Omega Seamaster Professional Diver 300 in Sedna Gold, featuring a sunburst black wave dial and ceramic bezel. It runs on the reliable Omega Calibre 8800, certified by COSC and METAS.

Condition: Preowned - Fair (Note small ding on top left lug)
Material: 18k Sedna Gold
Case size: not specified

Posted at

Mar 21, 2026, 9:54 AM

Active

View listing on r/WatchExchange

BNIB Omega Seamaster Diver 300M 210.30.42.20.04.001 $5,399

Omega - 210.30.42.20.04.001 · $5,399

Up for sale is the Omega Seamaster Diver 300M, featuring a black ceramic bezel with a white enamel diving scale and a polished white ceramic dial.

Condition: Brand new in box with no issues
Case diameter: 42mm
Lug width: 20mm
Water resistance: 300m depth rating

Posted at

Mar 20, 2026, 12:36 PM

Active

View listing on r/WatchExchange

Omega Seamaster Diver 300M Professional 300m 2542.80.00 41mm Quartz

Omega - 2542.80.00 · $1,999

Condition: Clear wear and light hand polish and scratches throughout
Case size: 41mm
Diameter: 41mm case
Lug width: 20mm

Posted at

Mar 20, 2026, 11:52 AM

Active

View listing on r/WatchExchange

Omega Seamaster Diver 300M Co-Axial 41mm - Blue Ceramic (212.30.41.20.03.001)

Omega - 212.30.41.20.03.001 · $2,999

This Omega Seamaster Diver 300M Professional features a clean, non-wave 'lacquer' dial and deep blue ceramic bezel, offering a refined and versatile look.

Condition: Great / Very Good
Movement: Omega Calibre 2500 (Automatic Co-Axial Chronometer)
Case size: 41mm
Diameter: 41mm

Posted at

Mar 19, 2026, 6:34 PM

Active

View listing on r/WatchExchange

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

Omega - 210.32.42.20.01.003 · $5,450

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

Condition: LIKE NEW (99/100)
Case size: 42mm
Material: full kit, all boxes, cards, manual, hang tag, original crystal sticker

Posted at

Mar 18, 2026, 9:32 PM

Active

View listing on r/WatchExchange

Omega Seamaster Diver 300M “Tokyo Olympics” Edition

Omega - Seamaster Diver 300M "Tokyo Olympics" Edition · $5,800

This Omega Seamaster Diver 300M is a special edition inspired by the Tokyo Olympics. It comes in very good condition, lightly polished for retail readiness.

Condition: Very good pre-owned condition
Box And Papers: Yes, full set including warranty card, manual, and tags
Condition Notes: Light polish for retail ready

Posted at

Mar 18, 2026, 9:51 AM

Active

View listing on r/WatchExchange

2020 Omega Seamaster Diver 300M Black Ceramic/Titanium 43.5mm 210.92.44.20.01.001 – Full Set $5,800 Shipped

Omega - 210.92.44.20.01.001 · $5,800

This Omega Seamaster Diver 300M features a titanium case, black ceramic dial, and ceramic bezel, powered by Omega's Co-Axial Master Chronometer Caliber 8800, offering accuracy, anti-magnetic resistance, and everyday reliability.

Condition: Excellent
Case Size: 43.5mm
Case Material: Titanium
Movement: Automatic (Omega Co-Axial Master Chronometer Caliber 8800)

Posted at

Mar 18, 2026, 1:20 AM

Active

View listing on r/WatchExchange

Omega Seamaster Diver 300M – James Bond 60th Anniversary – New 2026

Omega - 21030422003002 · $7,750

This listing is for an Omega Seamaster Diver 300M, a limited edition watch celebrating James Bond's 60th anniversary. It features a blue wave dial, animated caseback, and OMEGA's co-axial master chronometer Calibre 8806.

Condition: New
Case size: 42mm
Water resistance: 300m
Movement: co-axial master chronometer Calibre 8806

Posted at

Mar 18, 2026, 12:37 AM

Active

View listing on r/WatchExchange