Omega Seamaster Seamaster Master Co-Axial 39.5 Singapore Edition Stainless Steel / White / Alligator

Reference 511.13.40.20.04.002

About this watch

The Omega Seamaster Master Co-Axial 39.5 Singapore Edition is a masterpiece of horology, boasting exceptional craftsmanship and a unique story tied to the vibrant city of Singapore. This limited edition watch combines modern technology with classic design, making it a versatile companion for both formal and casual occasions. The stunning white dial features a glossy finish, stick and dot indexes, and Feuille hands that ensure readability while maintaining a sleek profile. The 39.5 mm stainless steel case strikes a perfect balance between boldness and wearability, paired with an alligator leather strap that enhances its luxurious feel. With a water resistance of up to 60 meters, this watch is more than just a pretty face, handling splashes and brief immersion while maintaining accuracy and performance even in challenging conditions. The Omega Seamaster Master Co-Axial 39.5 Singapore Edition stands tall in the realm of luxury watches, its blend of sophistication, precision, and limited availability making it a worthy addition to any collection.
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Key Features

  • Omega caliber 8800 self-winding movement
  • Co-Axial escapement reducing friction for longevity and reliability
  • 55-hour power reserve
  • Chronometer certified by Swiss Federal Institute of Metrology (METAS)
  • Resistant to magnetic fields up to 15,000 gauss
  • Stainless steel case with sapphire crystal glass
  • 39.5 mm diameter with 20 mm lug width
  • White dial with glossy finish and stick/dot indexes

Specifications

Brand
Omega
Family
Seamaster
Model
Seamaster Master Co-Axial 39.5 Singapore Edition Stainless Steel / White / Alligator
Reference
511.13.40.20.04.002
Movement
8800
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 39.5mm
Dial Color
White
Crystal
Sapphire
Water Resistance
60

Current Listings

[WTS] Omega Seamaster Aqua Terra Ref 220.10.41.21.02.001 - 41mm FULL SET! -$4500 OBO

Omega Seamaster Aqua Terra Ref 220.10.41.21.02.001 - 41mm FULL SET! -$4500 OBO

A Omega Seamaster Aqua Terra, case size is 41mm, available with box and papers.

  • Condition: Pre-owned
  • Case Size: 41mm
  • Box Card Papers: Yes (both included)
  • Model: Seamaster Aqua Terra
Posted at
May 14, 2026, 11:12 AM
Active
[WTS] 1969 Omega Seamaster Chronometer ref. 168.024 w/ Cal. 564, BOR 1036/511 - $1,290

1969 Omega Seamaster Chronometer ref. 168.024 w/ Cal. 564, BOR 1036/511 - $1,290

Omega - 168.024 · $1,290
A 1969 Omega Seamaster ref. 168.024, powered by the chronometer-rated Cal. 564 automatic movement, with an original silver sunburst dial and an Omega BOR bracelet.

  • Movement: Cal. 564 automatic chronometer movement
  • Bracelet length: fits around a 7.25" wrist
  • Case size: approx. 35mm diameter
Posted at
May 14, 2026, 9:23 AM
Active
[WTS][US] Omega Seamaster Professional 300m - Green Dial - 210.30.42.20.10.001 - Full Set

[US] Omega Seamaster Professional 300m - Green Dial - 210.30.42.20.10.001 - Full Set

An Omega Seamaster Professional 300m watch with a green dial and 42mm size. It features mechanical functions without any issues.

  • Condition: Fantastic condition with minor hairlines
  • Size: 42mm diameter
  • Depth rating: 300m
Posted at
May 14, 2026, 7:29 AM
Active
[WTS][US] Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 232.30.46.21.01.001 - Full Set

[US] Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 232.30.46.21.01.001 - Full Set

This Omega Seamaster Planet Ocean features a black dial and measures 45.5mm in diameter.

  • Condition: Fantastic with minor hairlines on case, clasp, or bracelet
  • Case size: 45.5mm diameter
  • Water resistance: 600m depth rating
Posted at
May 14, 2026, 7:19 AM
Active
[WTS] Omega Seamaster Planet Ocean 2201.51 42mm - $2,690

Omega Seamaster Planet Ocean 2201.51 42mm - $2,690

This Omega Seamaster Planet Ocean 2201.51 is a 42mm automatic watch with an Omega Calibre 2500 movement. It has a steel case and original Omega steel bracelet.

  • Condition: Very good condition, with minimal marks/hairlines on case and bracelet
  • Case size: 42mm diameter
  • Movement: Omega Calibre 2500
  • Crystal type: AR Coating
Posted at
May 14, 2026, 4:30 AM
Active
[WTS] Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm  - $2,690

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,690

Up for sale is my great condition Omega Seamaster Aqua Terra with an automatic Omega Calibre 8500 movement.

  • Condition: Very good condition, minimal marks/hairlines
  • Case size: 38.5mm diameter
  • Movement: Omega Calibre 8500, automatic
Posted at
May 14, 2026, 4:26 AM
Active
[WTS] Omega Seamaster 212.30.36 Wave Dial Mid Size 36mm Quartz  - $1,790

Omega Seamaster 212.30.36 Wave Dial Mid Size 36mm Quartz - $1,790

Up for sale is my great condition Omega Seamaster 212.30.36.61.01.001, a battery powered quartz movement watch measuring at 36mm.

  • Condition: Good condition for its age, with minimal marks/hairlines and some wear on the bezel insert
  • Case size: 36mm diameter
  • Movement type: Quartz
  • Bracelet length: up to 7-7.25 inch wrists depending on wrist shape
Posted at
May 14, 2026, 4:24 AM
Active
[WTS] Omega Seamaster Professional "Prince William" 2561.80.00 🇬🇧

Omega Seamaster Professional "Prince William" 2561.80.00 🇬🇧

Omega - 2561.80.00 · $1,900
This Omega Seamaster 2561.80.00 'Prince William' is a beautifully polished watch with a rich history.

  • Condition: Great condition for its age, with signs of wear on the bezel insert
  • Case size: 36mm diameter
  • Lug to lug length: 43mm
  • Lug width: 18mm
Posted at
May 13, 2026, 11:01 PM
Active