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] [Freshly Serviced Feb 2026] Rare Japan Limited Omega Seamaster 120M Ref. 2501.83 Blue "Explorer" Dial

[Freshly Serviced Feb 2026] Rare Japan Limited Omega Seamaster 120M Ref. 2501.83 Blue "Explorer" Dial

Omega - 2501.83 · $1,999
This Omega Seamaster 120M features a rare Japanese Domestic Market exclusive 'explorer' blue sunburst dial, with a clean and lumed face, and good condition case and bracelet.

  • Condition: Excellent
  • Year Of Manufacture: approximately 2006
  • Water Resistance: 5 bar (tested on Feb 2nd 2026)
  • Bracelet Size: up to 17.5cm
Posted at
Feb 6, 2026, 2:57 AM
Active
[WTS] 2011 Omega Seamaster 300M 2123.04 - $2,399

2011 Omega Seamaster 300M 2123.04 - $2,399

Omega - 2123.04 · $2,399
A 2011 Omega Seamaster Diver 300M Quartz with a stainless steel case, black dial, and quartz movement. It features a domed sapphire crystal and is water-resistant up to 1000 feet.

  • Condition: Great condition overall with light wear consistent with careful use.
  • Case diameter: 41mm
  • Case material: Stainless steel
  • Dial color: Black
Posted at
Feb 5, 2026, 10:33 PM
Active
[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