Omega Seamaster Seamaster Master Co-Axial 39.5 Edizione Venezia Sedna Gold / Silver / Alligator

Reference 511.53.40.20.02.001

About this watch

The Omega Seamaster Master Co-Axial 39.5 Edizione Venezia Sedna Gold is an emblem of elegance and precision, blending artistry, technology, and history. With its impeccable design and robust features, this watch invites admiration and curiosity. The Sedna Gold casing glimmers in the light, catching the eye effortlessly, while the sapphire crystal glass offers clarity and exceptional scratch resistance. At the core of the Omega Seamaster Master Co-Axial is the impressive Omega Caliber 8801 movement, showcasing Omega's commitment to precision and innovation. With a remarkable power reserve of 55 hours and a water resistance rating of 60 meters, this watch promises to be a reliable companion for both formal events and casual outings.
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Key Features

  • Sedna Gold casing
  • Sapphire crystal glass
  • Omega Caliber 8801 movement
  • Master Chronometer certification
  • Date function
  • Water resistance rating of 60 meters
  • 55-hour power reserve

Specifications

Brand
Omega
Family
Seamaster
Model
Seamaster Master Co-Axial 39.5 Edizione Venezia Sedna Gold / Silver / Alligator
Reference
511.53.40.20.02.001
Movement
8801
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Sedna Gold 39.5mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
60

Current Listings

[WTS] Omega Seamaster Diver 300M, 212.32.41.20.04.001, Limited Edition 007 Commander’s Watch, 2018

Omega Seamaster Diver 300M, 212.32.41.20.04.001, Limited Edition 007 Commander’s Watch, 2018

  • Limited edition: 007 Commander's Watch
  • Year: 2018
  • Note: Additional Details
Posted at
Feb 5, 2026, 9:23 PM
Active
[WTS] Omega Seamaster Professional 41mm 300m ref. 2531.80 Automatic full set box and card 2004

Omega Seamaster Professional 41mm 300m ref. 2531.80 Automatic full set box and card 2004

Omega - 2531.80 · $3,550
The Omega Seamaster Professional 41mm 300m is a neo-vintage classic with a rich maritime history, featuring a marine blue insert and crimson red tip seconds hand. It's powered by the Omega cal. 1120 and has a helium escape valve.

  • Condition: Visible wear and polish
  • Case size: 41mm
  • Case thickness: 11.9mm
  • Lug width: 20mm
Posted at
Feb 5, 2026, 8:31 PM
Active
[WTS] Omega Seamaster Aqua Terra Day Date, Blue dial.

Omega Seamaster Aqua Terra Day Date, Blue dial.

This Omega Seamaster Aqua Terra Day Date features a blue dial and is one of the seller's daily wear pieces. It comes with original box, strap, and clasp.

  • Condition: pre-owned with minor wear (micro hairline)
  • Original Box: true
  • Strap Condition: original
  • Case Size: 40mm diameter
Posted at
Feb 5, 2026, 8:21 PM
Active
[WTS] 2017 OMEGA Seamaster Railmaster 40MM Blue Dial Steel Bracelet

2017 OMEGA Seamaster Railmaster 40MM Blue Dial Steel Bracelet

A 2017 OMEGA Seamaster Railmaster with a blue dial, 40mm in size. The watch is in good condition despite some minor flaws.

  • Condition: Used, with minor cosmetic damage
  • Missing Items: International warranty card, inner box, outer box flap
Posted at
Feb 5, 2026, 8:19 PM
Active
[WTS] Omega Seamaster Heritage 300 234.30.41.21.01.001 Box Papers 🌊

Omega Seamaster Heritage 300 234.30.41.21.01.001 Box Papers 🌊

This vintage-inspired Omega Seamaster Heritage 300 is in very good condition, featuring desk diving marks on the clasp and minor fleabites between 9 and 12 on the inner bezel ring.

  • Condition: very good condition, desk diving marks on the clasp
Posted at
Feb 5, 2026, 5:01 PM
Active
[WTS] 2020 Omega Seamaster Planet Ocean 43.5mm Black Dial on Bracelet 215.30.44.21.01.002 B+P

2020 Omega Seamaster Planet Ocean 43.5mm Black Dial on Bracelet 215.30.44.21.01.002 B+P

This 2020 Omega Seamaster Planet Ocean is a rugged yet refined dive watch, featuring a sharp black dial and matching black and orange ceramic bezel that give it a clean, confident look on the wrist.

  • Condition: Good condition with some signs of wear
  • Case diameter: 43.5mm
  • Crystal: Sapphire
  • Bracelet material: Stainless Steel
Posted at
Feb 5, 2026, 4:47 PM
Active
[WTS] Omega Seamaster Diver - 41mm Black Wave - 212.30.41.20.01.002

Omega Seamaster Diver - 41mm Black Wave - 212.30.41.20.01.002

This Omega Seamaster Diver features a black dial and is available in a 41mm size, described as being in great condition.

  • Condition: Pre-owned with minor wear throughout
  • Size: 41mm diameter
  • Water Resistance: 30 bar/300m
Posted at
Feb 5, 2026, 12:41 PM
Active
[WTS] Omega Seamaster 120m Quartz “Alvéoles” – 1982 – $750 shipped from Egypt

Omega Seamaster 120m Quartz “Alvéoles” – 1982 – $750 shipped from Egypt

For sale is an Omega Seamaster 120m Quartz “Alvéoles” from 1982, named for its distinctive honeycomb-style bezel design. It features a champagne dial with applied markers and original two-tone Omega bracelet.

  • Condition: Overall honest vintage condition with light wear consistent with age
  • Movement: Cal. 1342 Quartz
  • Case material: Stainless steel with a gold plated bezel
  • Bezel type: Gold-tone Alvéoles design
Posted at
Feb 5, 2026, 12:31 PM
Active
[WTS] Omega Seamaster Diver 300M 007 NTTD

Omega Seamaster Diver 300M 007 NTTD

Selling my Omega Seamaster NTTD edition ref. 210.90.42.20.01.001, a full kit with the Omega/007 branded canvas and leather watch roll, hang tag, all cards and boxes.

  • Condition: Excellent with minor scratches
  • Water Resistance: 300m
  • Case Dimensions: 42mm diameter
Posted at
Feb 5, 2026, 9:53 AM
Active