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 Planet Ocean 45.5mm Full Kit

Omega Seamaster Planet Ocean 45.5mm Full Kit

For sale is my beloved Omega Planet Ocean 45.5mm watch, featuring a sapphire and ceramic bezel with a depth rating of 600 meters, powered by an in-house Caliber 2500 movement.

  • Condition: Light wear, a few tiny scuffs and scratches on the lugs and case
  • Case size: 45.5mm
  • Water resistance: 600m
  • Bracelet material: steel
Posted at
Feb 2, 2026, 2:39 AM
Active
[WTS] Omega Seamaster 300M Co-Axial 41mm 2220.80 Box and Papers- $2,790 - Reserved post for u/3twellv

Omega Seamaster 300M Co-Axial 41mm 2220.80 Box and Papers- $2,790 - Reserved post for u/3twellv

Omega - 2220.80 · $2,790
Up for sale is my Omega Seamaster 2220.80, a 41mm automatic co-axial cal 2500 movement watch in great condition.

  • Condition: 8.8/10 - great condition with minimal marks/hairlines
  • Case size: 41mm
  • Bracelet length: 7-7.25 inch (fits wrists up to 7.25 inches)
  • Shipping method: Fedex Priority Shipping
Posted at
Feb 2, 2026, 12:22 AM
Active
[WTS] Omega Seamaster Ref. 166.010 – Cal. 562 – Vintage Automatic

Omega Seamaster Ref. 166.010 – Cal. 562 – Vintage Automatic

Omega - 166.010 · $1,000
This classic vintage Omega Seamaster ref. 166.010 is powered by the legendary caliber 562 automatic movement, featuring a clean design and excellent proportions.

  • Condition: very mint condition
  • Movement: Omega Cal. 562 automatic
  • Lug width: 18mm
  • Case material: Stainless steel
Posted at
Feb 1, 2026, 11:58 PM
Active
[WTS] Omega Seamaster Aqua Terra 150M – Skyfall Grey Teak Dial |Ref. 231.10.42.21.06.001 | 41.5 mm | Full Set | 2020 | Excellent Condition

Omega Seamaster Aqua Terra 150M – Skyfall Grey Teak Dial |Ref. 231.10.42.21.06.001 | 41.5 mm | Full Set | 2020 | Excellent Condition

A timeless and highly versatile Seamaster Aqua Terra featuring the sought-after Skyfall grey teak-pattern dial, inspired by the wooden decks of luxury sailboats.

  • Condition: Excellent
  • Case size: 41.5mm
  • Material: stainless steel
  • Water resistance: 150m depth rating
Posted at
Feb 1, 2026, 10:51 PM
Active
[WTS] Omega Seamaster Aquaterra 38mm ideal condition, 220.32.38.20.03.001 box and papers $6500

Omega Seamaster Aquaterra 38mm ideal condition, 220.32.38.20.03.001 box and papers $6500

Aqua Terra 38mm from Omega, features a stunning turquoise dial and is upgraded with a rubber strap.

  • Condition: Mint
  • Case size: 38mm diameter
  • Strap material: rubber
Posted at
Feb 1, 2026, 9:33 PM
Active
[WTS] Omega Seamaster Planet Ocean 600M Chronograph – Ref. 215.32.46.51.99.001 – 45.5mm Co-Axial – $4,599 Shipped

Omega Seamaster Planet Ocean 600M Chronograph – Ref. 215.32.46.51.99.001 – 45.5mm Co-Axial – $4,599 Shipped

A bold, modern professional dive chronograph featuring a 45.5mm stainless steel case, unidirectional red ceramic bezel, sapphire crystal, screw-down crown and pushers, and 600m / 2000ft water resistance.

  • Condition: Great overall
  • Case Size: 45.5mm diameter
  • Depth Rating: 2000ft water resistance
Posted at
Feb 1, 2026, 9:24 PM
Active
[WTS][CONUS] 60s Vintage Omega Seamaster De Ville 166.020 | Salmon Patina Dial | Cal. 562 quickset | Circa 1960s | $830 (SERVICED)

[CONUS] 60s Vintage Omega Seamaster De Ville 166.020 | Salmon Patina Dial | Cal. 562 quickset | Circa 1960s | $830 (SERVICED)

Omega - 166.020 · $830
A 1960s Omega Seamaster De Ville with a salmon / honey dial, featuring minimalist applied indices that catch the light in all the right ways. This reference comes from the transitional period when Omega was blending sporty reliability with dress-watch refinement under the Seamaster De Ville line — and it shows.

  • Condition: Good vintage condition
  • Dial: Salmon / Honey
  • Movement: Cal. 562 (serviced)
  • Caliber: 562
Posted at
Feb 1, 2026, 6:45 PM
Active
[WTS] Omega Seamaster Aqua Terra Silver Dial - 2504.30 - 36mm- $2,350 Shipped ✈️

Omega Seamaster Aqua Terra Silver Dial - 2504.30 - 36mm- $2,350 Shipped ✈️

Omega - 2504.30 · $2,350
This Omega Seamaster Aqua Terra features a beautiful sunburst silver dial and is available in a compact 36mm case diameter.

  • Condition: very good condition
  • Case diameter: 36mm
  • Movement: Omega Co-axial 2500
  • Wrist size fit: 6.75 - 7inch
Posted at
Feb 1, 2026, 5:00 PM
Active
[WTS] Omega Seamaster Planet Ocean GMT “Oreo” - 215.30.44.22.01.001 - Price Reduced!

Omega Seamaster Planet Ocean GMT “Oreo” - 215.30.44.22.01.001 - Price Reduced!

This Omega Seamaster Planet Ocean GMT features a 43.5mm case size and has been well-maintained, showing only light scratches on the clasp and bracelet.

  • Condition: Very good, with minor wear
  • Size: 43.5mm diameter
  • Bracelet condition: Light scratches
Posted at
Feb 1, 2026, 4:58 PM
Active