[WTS] Omega Seamaster Professional 300M – Ref. 210.30.42.20.01.001 – 42mm Co-Axial Master Chronometer – Box & Cards – $3,799 Shipped

Omega Seamaster Professional 300M – Ref. 210.30.42.20.01.001 – 42mm Co-Axial Master Chronometer – Box & Cards – $3,799 Shipped

This Omega Seamaster Professional 300M features a 42mm stainless steel case, black wave dial, and 300m water resistance. It is powered by the Co-Axial Master Chronometer Caliber 8800.

  • Condition: Excellent overall with light, honest wear.
  • Case size: 42mm diameter
  • Water resistance: 300m
  • Movement type: Co-Axial Master Chronometer Caliber 8800
Posted at
Jan 5, 2026, 9:45 PM
Active
[WTS] Omega Seamaster Professional – Ref. 210.30.42.20.04.001 – 42mm Co-Axial – Box and Papers – $3,999 Shipped

Omega Seamaster Professional – Ref. 210.30.42.20.04.001 – 42mm Co-Axial – Box and Papers – $3,999 Shipped

This Omega Seamaster Professional features a 42mm stainless steel case, white wave dial, and black ceramic bezel, with a Master Chronometer-certified Co-Axial automatic movement. It offers excellent legibility and durability, along with 300m water resistance.

  • Condition: Excellent overall with light honest wear
  • Case size: 42mm diameter
  • Water resistance: 300m
  • Movement certification: Master Chronometer–certified
Posted at
Dec 26, 2025, 9:31 PM
Sold
[WTS] Omega Seamaster Diver 300m Master Co-Axial 42, 2024 stamped 3 card set, LNIB Complete

Omega Seamaster Diver 300m Master Co-Axial 42, 2024 stamped 3 card set, LNIB Complete

This Omega Seamaster Diver 300m Master Co-Axial 42mm features a 316L stainless steel case, in-house caliber 8800 movement, and a sapphire crystal with exhibition back. It also includes a helium valve and rubber strap.

  • Condition: Like New Condition
  • Case Material: 316L SS
  • Lug Width: 20mm
  • Movement Type: In House Caliber 8800
Posted at
Dec 23, 2025, 9:59 PM
Expired
[WTS] OMEGA Seamaster Diver 300M NTTD 007 Edition Ref. 210.90.42.20.01.001 + 007 NATO Strap - ULTIMATE SET!

OMEGA Seamaster Diver 300M NTTD 007 Edition Ref. 210.90.42.20.01.001 + 007 NATO Strap - ULTIMATE SET!

OMEGA - 210.90.42.20.01.001 · $10,000
The OMEGA Seamaster Diver 300M 007 Edition Ref. 210.90.42.20.01.001 is a 42mm titanium watch with a unique tropical brown aluminum bezel ring and dial, designed for military needs, featuring a Co-Axial Master Chronometer Calibre 8806 and a titanium mesh bracelet.

  • Condition: [UNWORN]
  • Material: Grade 2 Titanium
  • Case size: 42mm
  • Bezel type: tropical brown aluminum bezel ring
Posted at
Dec 22, 2025, 9:05 AM
Expired
[WTS] Omega Seamaster Diver 300M 42mm, steel on rubber strap

Omega Seamaster Diver 300M 42mm, steel on rubber strap

This Omega Seamaster Diver 300M features a 42mm stainless steel case, black ceramic wave dial and is powered by the Omega Co-Axial Master Chronometer Cal. 8800.

  • Condition: Excellent
  • Case size: 42mm
  • Diameter: 42mm
  • Water resistance: 300m / 1000ft
Posted at
Dec 20, 2025, 3:48 PM
Expired
[WTS] Omega Seamaster Diver 300M Sedna Gold Bezel | Ref. 210.22.42.20.01.001| Full Set | 2024 | Excellent Condition

Omega Seamaster Diver 300M Sedna Gold Bezel | Ref. 210.22.42.20.01.001| Full Set | 2024 | Excellent Condition

A 42mm two-tone Omega Seamaster Diver 300M featuring a sleek black ceramic dial and matching bezel, powered by the Co-Axial Master Chronometer Caliber 8800.

  • Condition: Excellent pre-owned condition
  • Case size: 42mm
  • Material: Stainless steel and 18K yellow gold
  • Dial color: Black ceramic wave-pattern
Posted at
Dec 16, 2025, 10:59 PM
Expired
[WTS] Iconic Diver: Omega Seamaster 300M Blue - 2025 - Unworn

Iconic Diver: Omega Seamaster 300M Blue - 2025 - Unworn

The Omega Seamaster Diver 300M Co-Axial Master Chronometer features a deep blue ceramic dial with laser-engraved waves, 42mm stainless steel case, and a blue ceramic bezel. It includes Omega's METAS-certified Caliber 8800 and has 300 meters of water resistance.

  • Condition: Unworn
  • Case diameter: 42mm
  • Water resistance: 300m
  • Movement: Caliber 8800
Posted at
Dec 14, 2025, 2:28 PM
Expired
[WTS] Omega Seamaster Diver 300 M 42mm White Wave Dial Ref. 
210.30.42.20.04.001 (2025) - Pre-Owned Very Good Condition w/ Box & Papers

Omega Seamaster Diver 300 M 42mm White Wave Dial Ref. 210.30.42.20.04.001 (2025) - Pre-Owned Very Good Condition w/ Box & Papers

The Omega Seamaster Diver 300M features a white ceramic dial and a robust stainless steel bracelet, powered by the Co-Axial Master Chronometer Calibre 8800.

  • Condition: Pre-owned very good condition
  • Movement: Calibre 8800
  • Size: 42mm case diameter
  • Water Resistance: 30 ATM (300m depth rating)
Posted at
Nov 27, 2025, 5:38 PM
Sold
[WTS] Omega Seamaster Diver 300 M 42mm Blue Wave Dial Ref. 210.30.42.20.03.001 (2024) - Pre-Owned Good Condition w/ Box & Papers

Omega Seamaster Diver 300 M 42mm Blue Wave Dial Ref. 210.30.42.20.03.001 (2024) - Pre-Owned Good Condition w/ Box & Papers

A 2024 Omega Seamaster Diver 300M with a 42mm stainless steel case and blue wave dial, powered by the METAS-certified Co-Axial Master Chronometer Calibre 8800.

  • Condition: Pre-owned good condition
  • Movement: Calibre 8800, chronometer certified
  • Year: 2024
  • Case size: 42mm
Posted at
Nov 27, 2025, 5:28 PM
Expired