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

[WTS] Omega Seamaster 300M Black Aluminum / Orange 210.30.42.20.01.018 ( new / 2025 / box and papers )

Omega Seamaster 300M Black Aluminum / Orange 210.30.42.20.01.018 ( new / 2025 / box and papers )

Omega - 210.30.42.20.01.018 · $6,200
A brand new Omega Seamaster 300 with a 42mm stainless steel case, black aluminum dial and bezel with orange accents on a mesh bracelet.

  • Condition: Brand new
  • Case size: 42mm diameter
  • Movement: 8806 Master Co-Axial Movement
Posted at
May 5, 2026, 11:21 AM
Active
View listing on r/WatchExchange
[WTS] 2025 Omega Seamaster Diver 300M 210.30.42.20.01.018 Full Set $6,250

2025 Omega Seamaster Diver 300M 210.30.42.20.01.018 Full Set $6,250

Omega - 210.30.42.20.01.018 · $6,250
A modern dive watch featuring a clean black dial configuration and full stainless steel bracelet, powered by the Omega Co-Axial Master Chronometer Calibre 8800.

  • Condition: Mint (pre-owned, minimal to no wear)
  • Movement: Omega Calibre 8800 Master Chronometer
  • Case size: 42mm diameter
  • Case material: Stainless steel
Posted at
May 2, 2026, 6:13 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M 210.22.42.20.03.001 Two-Tone Blue Dial 42mm Automatic Full Set

Omega Seamaster Diver 300M 210.22.42.20.03.001 Two-Tone Blue Dial 42mm Automatic Full Set

Omega - 210.22.42.20.03.001 · $5,999
This Omega Seamaster Diver 300M features a two-tone stainless steel and yellow gold case with a blue dial on a matching blue rubber strap, powered by an automatic movement.

  • Condition: Very good
  • Case size: 42mm diameter
  • Movement type: Automatic
  • Set included: Full set
Posted at
May 11, 2026, 8:22 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M 🚨STEAL🚨

Omega Seamaster Diver 300M 🚨STEAL🚨

Omega - Diver 300M · $3,400
Up for sale is my Omega Seamaster Diver 300M in the gray dial/blue bezel configuration, coming on a blue OEM rubber strap and including box, extra black rubber strap, certificate of authenticity, and insured shipping.

  • Condition: like new
  • Case condition: near-mint
  • Strap type: rubber
  • Additional straps: 1 black non-OEM, 1 blue OEM
Posted at
May 9, 2026, 2:01 PM
Active
View listing on r/WatchExchange
[WTS] 2024 Omega Seamaster Diver 300M 210.30.42.20.10.001 Green Seaweed Full Set - $5,395

2024 Omega Seamaster Diver 300M 210.30.42.20.10.001 Green Seaweed Full Set - $5,395

Omega - 210.30.42.20.10.001 · $5,395
This listing is for a 2024 Omega Seamaster Diver 300M Green Seaweed, featuring a **Reference**: 210.30.42.20.10.001 and a full set of contents including watch, inner & outer box, card holder, international warranty card, pictograms card, master chronometer card, and instructions manual.

  • Condition: Excellent condition with minimal signs of wear.
  • Year: 2024
  • Shipping: fully insured through Fedex
Posted at
May 9, 2026, 11:23 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M James Bond 60th Anniversary 210.30.42.20.03.002 $6,999

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
A limited edition Omega Seamaster Diver 300M celebrating 60 years of James Bond on screen, featuring a reliable COSC and METAS certified Calibre 8806 movement with resistance to magnetic fields up to 15,000 gauss. The watch has a rhodium plated finish with Geneva waves in arabesque.

  • Condition: Preowned - Excellent
  • Movement type: Automatic
  • Water resistance: 300m
Posted at
May 9, 2026, 10:32 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! 🔥$6,250🔥 PRICED TO SELL!

OMEGA Seamaster Diver 300M "Paris 2024" Ref. 522.21.42.20.04.001 + Five Stripes "Paris 2024" NATO Strap - ULTIMATE SET! 🔥$6,250🔥 PRICED TO SELL!

OMEGA - 522.21.42.20.04.001 · $6,250
The Seamaster Diver 300M 'Paris 2024' is a luxurious tribute to sporting excellence, featuring a 42mm case combining stainless steel and 18K Moonshine Gold.

  • Condition: UNWORN
  • Case size: 42mm
  • Movement: Calibre 8800 Master Chronometer
  • Bezel: laser-structured diving scale in positive relief
Posted at
May 8, 2026, 7:22 PM
Active
View listing on r/WatchExchange
[WTS] 2023 Omega Seamaster Diver 300M Grey 12/23 Ref# 210.30.42.20.06.001 $4,299.00

2023 Omega Seamaster Diver 300M Grey 12/23 Ref# 210.30.42.20.06.001 $4,299.00

Omega - 210.30.42.20.06.001 · $4,299
A 2023 Omega Seamaster Diver 300M Grey with a 42mm size and domed sapphire crystal, featuring an automatic movement and 300M water resistance.

  • Condition: Excellent shape, minor hairlines on case-clasp and bracelet
  • Movement: 8806
  • Water resistance: 300m
  • Reserve: 55 hours
Posted at
May 8, 2026, 6:37 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M Blue Ceramic Gray Dial – Full Set w/ Bonus Strap

Omega Seamaster Diver 300M Blue Ceramic Gray Dial – Full Set w/ Bonus Strap

Omega - 210.30.42.20.06.001 · $4,500
The Omega Seamaster Diver 300M features a Blue ceramic bezel and gray wave dial, powered by the Calibre 8800 Co-Axial Master Chronometer with METAS certification and 55hr power reserve.

  • Condition: Very Good
  • Case material: stainless steel
  • Diameter: 42mm
  • Water resistance: 300m
Posted at
May 8, 2026, 4:45 PM
Active
View listing on r/WatchExchange