Omega Seamaster Seamaster Master Co-Axial 39.5 Macau Edition Stainless Steel / Green / Alligator

Reference 511.13.40.20.10.001

About this watch

The Omega Seamaster Master Co-Axial 39.5 Macau Edition is a breathtaking timepiece that embodies everything we love about Omega. With its stunning green gradient dial, crafted from high-quality stainless steel, and protected by a scratch-resistant sapphire crystal, this watch is both modern and sophisticated. The Omega Caliber 8800 movement features innovative Co-Axial escapement, reducing friction and enhancing longevity. Certified by METAS, it's resistant to magnetic fields up to 15,000 gauss. This self-winding movement boasts an impressive 55-hour power reserve and 60 meters water resistance. Its ergonomic design makes it feel like a second skin, and the alligator leather strap adds a touch of elegance. Whether you're dressed in formal attire or casual wear, this watch is versatile enough for any occasion. With only 399 units available, its limited edition status adds to its allure, making it a collectible piece of art that tells a story.
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Key Features

  • Omega Caliber 8800 movement
  • Scratch-resistant sapphire crystal
  • Stainless steel case and strap
  • 60 meters water resistance
  • 55-hour power reserve
  • Co-Axial escapement
  • Limited edition with only 399 units

Specifications

Brand
Omega
Family
Seamaster
Model
Seamaster Master Co-Axial 39.5 Macau Edition Stainless Steel / Green / Alligator
Reference
511.13.40.20.10.001
Movement
8800
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 39.5mm
Dial Color
Green
Crystal
Sapphire
Water Resistance
60

Current Listings

[WTS] Omega Seamaster 300M Co-Axial Mid-size 2220.80 Box and Card - $2,850

Omega Seamaster 300M Co-Axial Mid-size 2220.80 Box and Card - $2,850

Omega - 2220.80 · $2,850
Up for sale is my Omega Seamaster 2220.80, a mid-size watch featuring an automatic co-axial cal 2500 movement.

  • Condition: 8.7/10 - great condition with minimal marks and hairlines
  • Case size: 41mm diameter
  • Movement: co-axial cal 2500
  • Bracelet fit: up to 7-7.25 inch wrists depending on wrist shape
Posted at
Jan 7, 2026, 7:54 PM
Active
[WTS] Omega 212.30.41.20.01.003 “SMPC” Seamaster Diver 300

Omega 212.30.41.20.01.003 “SMPC” Seamaster Diver 300

The Omega Seamaster Diver 300M is a black watch with a no wave dial, described as being in incredible condition.

  • Condition: Incredible condition, no scratches
  • Case size: 41mm diameter
  • Depth rating: 300m
Posted at
Jan 7, 2026, 4:16 PM
Active
[WTS] Omega Seamaster Planet Ocean 45mm 232.30.46.21.01.001 - $2999

Omega Seamaster Planet Ocean 45mm 232.30.46.21.01.001 - $2999

This Omega Seamaster Planet Ocean is listed for sale with its original box and papers.

  • Condition: The bezel and crystal are clean and clear, but the Case has some faint hairline scratches and one very small knick on the lug, with signs of wear on the bracelet.
  • Box And Papers: Yes
  • Shipping: via FedEx Ground with signature confirmation
Posted at
Jan 7, 2026, 1:34 PM
Active
[WTS] Omega Seamaster. NTTD. Bronze Gold + Titanium. Full Kit. 2025.

Omega Seamaster. NTTD. Bronze Gold + Titanium. Full Kit. 2025.

The Omega Seamaster is a NTTD model featuring Bronze Gold + Titanium and comes with a full kit.

  • Material: Bronze Gold + Titanium
  • Year: 2025
  • Collection: NTTD
Posted at
Jan 7, 2026, 12:16 PM
Active
[WTS][US] Omega Seamaster Professional 300m - 42mm - Blue - 210.30.42.20.03.001 - Full Set

[US] Omega Seamaster Professional 300m - 42mm - Blue - 210.30.42.20.03.001 - Full Set

Up for sale is an Omega Seamaster Professional 300m - Blue watch that functions perfectly mechanically without issue.

  • Condition: Fantastic with minor hairlines
  • Case size: 42mm
  • Water resistance: 300m
Posted at
Jan 7, 2026, 8:23 AM
Active
[WTS] Omega Seamaster 2531.80 full set

Omega Seamaster 2531.80 full set

Omega - 2531.80 · $3,500
For sale is my 2531.80 Omega Seamaster, also known as the Brosnan. This watch is in excellent condition and was serviced by Omega in 2021.

  • Condition: Excellent, unpolished
  • Servicing year: 2021
  • Bezel replacement: Yes
Posted at
Jan 6, 2026, 10:41 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m Master Co-Axial Golf Edition (2020) Complete Kit With Extra Straps

Omega Seamaster Aqua Terra 150m Master Co-Axial Golf Edition (2020) Complete Kit With Extra Straps

This Omega Seamaster Aqua Terra 150m Master Co-Axial Golf Edition is a 2020 model featuring a 41mm case size. It has been worn less than 20 times and comes with multiple straps.

  • Condition: Worn less than 20 times
  • Size: 41mm diameter
  • Background: Bought in 2020 from WatchMaxx
Posted at
Jan 6, 2026, 8:23 PM
Active
[WTS] Omega Seamaster Chrono ($11,499)

Omega Seamaster Chrono ($11,499)

Omega - 210.60.44.51.03.001 · $11,499
This Omega Seamaster Chrono is being sold with its original box and label.

  • Condition: Pre-Owned
  • Box: yes, with box
Posted at
Jan 6, 2026, 3:16 PM
Active