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

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The Omega Seamaster Diver 300M Chronograph has a sporty, bold design with a deep blue ceramic dial and matching blue ceramic bezel. It's powered by the Co-Axial Master Chronometer Caliber 9900, providing serious performance and anti-magnetism.

  • Condition: Excellent pre-owned condition
  • Bracelet size: 8 1/4 inches
  • Case condition: little to no signs of wear
  • Bezel condition: little to no signs of wear
Posted at
Mar 31, 2026, 12:41 PM
Active
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The Omega Planet Ocean 'Oreo' GMT is a sporty, bold watch with a clean black and white ceramic aesthetic. It features a 43.5mm stainless steel case, black ceramic dial, bi-color ceramic bezel, and orange GMT hand.

  • Condition: Excellent pre-owned condition
  • Case size: 43.5mm diameter
  • Water resistance: 600m depth rating
  • Bracelet size: 7.5 inches length
Posted at
Mar 31, 2026, 12:30 PM
Active
[WTS] Omega Seamaster AT 41mm | VG Condition incl. B&P (4.300€ OBO)

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Omega - Seamaster AT · $4,300
This Omega Seamaster AT 41mm is a well-maintained watch located in Munich, Germany.

  • Condition: VG (Very Good)
  • Size: 41mm diameter
Posted at
Mar 31, 2026, 11:43 AM
Active
[WTS] BNIB Omega Seamaster 300 ONLY $10k!

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Omega - 210.60.42.20.99.001 · $10,000
The Omega Seamaster 300 is a luxury dive watch with a stainless steel case and a black dial.

  • Condition: Brand new, full set
  • Rrp: $17,200 plus tax
Posted at
Mar 31, 2026, 9:18 AM
Active
[WTS][US] Omega Seamaster SMP300 - Silver Dial - 42mm - 210.30.42.20.06.001

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Up for sale is an Omega Seamaster SMP300 - Silver Dial - 42mm watch that functions perfectly mechanically.

  • Condition: Fantastic condition
  • Case size: 42mm diameter
  • Links: 10 full links
Posted at
Mar 31, 2026, 8:26 AM
Active
[WTS] 20mm Omega OEM - Seamaster Professional Diver SMP300M - Green Rubber Strap - Medium Length $225 Shipped (Reduced)

20mm Omega OEM - Seamaster Professional Diver SMP300M - Green Rubber Strap - Medium Length $225 Shipped (Reduced)

Omega - SMP300M · $225
A pre-owned Omega Seamaster Professional Diver SMP300M is being listed for sale.

  • Strap material: green rubber
  • Buckle type: pin buckle
Posted at
Mar 31, 2026, 4:32 AM
Active
[WTS] Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,190

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Omega - 2222.80 · $2,190
Up for sale is my Omega Seamaster 2222.80, a 36mm watch with an automatic co-axial cal 2500 movement.

  • Condition: very good with minimal marks/hairlines on case, caseback, and bracelet
  • Case size: 36mm diameter
  • Movement: automatic co-axial cal 2500
  • Bracelet type: original Omega steel bracelet
Posted at
Mar 30, 2026, 9:50 PM
Active
[WTS] Omega Seamaster Planet Ocean 2201.50 42mm - $2,890

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Omega - 2201.50 · $2,890
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  • Condition: Very good condition for its age (8.9/10)
  • Case size: 42mm
  • Movement type: automatic
  • Bracelet material: steel
Posted at
Mar 30, 2026, 9:48 PM
Active
[WTS] Omega Seamaster Professional 300M 42mm 210.30.42.20.06.001 | 2025 Box and Papers

Omega Seamaster Professional 300M 42mm 210.30.42.20.06.001 | 2025 Box and Papers

A Omega Seamaster Professional 300M in 2025 condition, with a slight wear on the polished parts of the case. It features a Master Chronometer and includes various accessories such as a card holder and double-boxed packaging.

  • Condition: Excellent Pre-Owned Condition with slight wear on polished parts of case
  • Service History: +5 s/d 340+ AMP
  • Links: 10.5 Links
Posted at
Mar 30, 2026, 9:28 PM
Active