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 Planet Ocean 600m 45.5mm 232.30.46.21.01.002 FULL SET

Omega Seamaster Planet Ocean 600m 45.5mm 232.30.46.21.01.002 FULL SET

Additional Details: Omega Seamaster Planet Ocean 600m for sale. This 45.5mm watch is a full set and has been polished before.

  • Condition: Pre-owned with polishing history
  • Case size: 45.5mm diameter
  • Water resistance: 600m
Posted at
Mar 30, 2026, 11:26 AM
Active
[WTS] Omega Seamaster SMP300 Black Rubber Strap - Size Medium - 20mm - 032CVZ015752

Omega Seamaster SMP300 Black Rubber Strap - Size Medium - 20mm - 032CVZ015752

Omega - SMP300 · $240
This is an Omega Seamaster SMP300 Black Rubber Strap in medium size, 20mm. It's a good condition strap with some minor cosmetic damage.

  • Condition: good condition, one small nick on the backside of the strap
  • Size: medium
  • Width: 20mm
Posted at
Mar 30, 2026, 7:37 AM
Active
[WTS] Omega Seamaster 166.0126 - $650

Omega Seamaster 166.0126 - $650

Omega - 166.0126 · $650
Up for sale is my Omega Seamaster 166.0126 in very good condition, measuring 35mm with an automatic movement.

  • Condition: Very good condition, some hairlines and marks on the case and caseback
  • Case Diameter: 35mm
  • Movement Type: automatic
  • Case Condition Rating: 8.2/10
Posted at
Mar 29, 2026, 10:12 PM
Active
[WTS] Omega Seamaster 2531.80 41mm Bond Box and Card - $2,600

Omega Seamaster 2531.80 41mm Bond Box and Card - $2,600

Omega - 2531.80 · $2,600
Up for sale is my Omega Seamaster 2531.80, a self-winding watch with 41mm case size and original steel bracelet.

  • Condition: very good condition
  • Case size: 41mm diameter
  • Water resistance: not specified
Posted at
Mar 29, 2026, 10:01 PM
Active
[WTS] Omega Seamaster Cal 552, Ref 14779 35mm, Original Beads of Rice Bracelet - $590

Omega Seamaster Cal 552, Ref 14779 35mm, Original Beads of Rice Bracelet - $590

Omega - 14779 · $590
This Omega Seamaster Cal 552 measures at 35mm and features an automatic movement. The watch has a steel case and original beads of rice steel bracelet.

  • Condition: good condition for its age with minimal marks and hairlines
  • Bracelet type: original Omega beads of rice steel bracelet
  • Case size: 35mm
  • Movement: automatic Omega Cal 552 movement
Posted at
Mar 29, 2026, 9:42 PM
Active
[WTS] Omega Seamaster Professional 2230.50 41MM Dial Only

Omega Seamaster Professional 2230.50 41MM Dial Only

Omega - 2230.50 · $490
The listing is for an original dial of the Omega Seamaster Professional Non AC 41mm, featuring a wave pattern with an applied omega logo and indices.

  • Condition: Excellent
  • Diameter: 41mm
Posted at
Mar 29, 2026, 9:39 PM
Active
[WTS] Omega Seamaster Professional 2230.50 Dial Only 41mm

Omega Seamaster Professional 2230.50 Dial Only 41mm

Omega - 2230.50 · $490
Original dial for the Omega Seamaster Professional, featuring an iconic wave pattern and applied indices.

  • Condition: Excellent
  • Case Size: 41mm diameter
  • Diameter Description: Case size/diameter
Posted at
Mar 29, 2026, 6:35 PM
Active
[WTS] Omega Seamaster Vintage

Omega Seamaster Vintage

Omega · $400
Selling this vintage Omega Seamaster in great condition, with a new crystal and band.

  • Condition: Great
  • Case Diameter: 34mm
  • Lug Width: 18mm
Posted at
Mar 29, 2026, 5:19 PM
Active
[WTS] Omega Seamaster PloProf 1200 – Titanium – Full Set – Warranty

Omega Seamaster PloProf 1200 – Titanium – Full Set – Warranty

  • Condition: Excellent
  • Case size: 55 × 48 mm
  • Bracelet material: Grade 2 titanium mesh
  • Water depth rating: 1200m
Posted at
Mar 29, 2026, 5:05 PM
Active