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

Reference 511.13.40.20.04.002

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

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] 2023 Omega Seamaster Diver SMP300m 42mm Blue Wave Dial Reference 210.30.42.20.03.001 Box and Papers

2023 Omega Seamaster Diver SMP300m 42mm Blue Wave Dial Reference 210.30.42.20.03.001 Box and Papers

Omega - 210.30.42.20.03.001 · $4,327
This is a 2023 Omega Seamaster Diver SMP300M with a 42mm blue wave dial. It is in excellent condition with minimal signs of wear on the case, bracelet, and clasp.

  • Condition: Excellent
  • Case Size: 42mm
  • Depth Rating: 300m
  • Water Resistance: 300m
Posted at
May 12, 2026, 2:03 PM
Active
View listing on r/WatchExchange
[WTS] 1966 Omega Seamaster 166.003 gold-capped with 14k gold bezel - FULLY SERVICED - $ 1090 delivered tariffs covered.

1966 Omega Seamaster 166.003 gold-capped with 14k gold bezel - FULLY SERVICED - $ 1090 delivered tariffs covered.

Omega - 166.003 · $1,090
a 1966 Omega Seamaster with a gold-capped case and 14k gold bezel, fully serviced.

  • Material: gold-capped case and 14k gold bezel
  • Year: 1966
Posted at
May 12, 2026, 12:07 PM
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[WTS] 1952 Omega Pre-Seamaster Ref. G6232 | Waffle Dial | 14k Gold Filled | Bumper Automatic | $1400 (SERVICED)

1952 Omega Pre-Seamaster Ref. G6232 | Waffle Dial | 14k Gold Filled | Bumper Automatic | $1400 (SERVICED)

Omega - G6232 · $1,400
A classic early automatic Omega with a honeycomb textured dial, paired with applied markers and dauphine hands.

  • Condition: Excellent vintage condition
  • Diameter: 34mm
  • Lug-to-lug length: ~42mm
  • Thickness: ~11mm
Posted at
May 12, 2026, 11:46 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Professional 300m Black Preowned 2021, $4200

Omega Seamaster Professional 300m Black Preowned 2021, $4200

Omega - 210.32.42.20.01.001 · $4,200
This Omega Seamaster Professional is a black watch with a 300m water resistance rating and comes with various accessories including the box, warranty, and manuals.

  • Condition: Preowned
  • Year: 2021
  • Water Resistance: 300m
Posted at
May 12, 2026, 10:21 AM
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[WTS] Omega Seamaster ref. 165.067 w/ Cal. 552 – Original sparkle dial, serviced, BOR 1037/614 – $1,069

Omega Seamaster ref. 165.067 w/ Cal. 552 – Original sparkle dial, serviced, BOR 1037/614 – $1,069

Omega - 165.067 · $1,069
A vintage Omega Seamaster ref. 165.067 with a 36mm stainless steel case, original sparkle dial, and freshly serviced Cal. 552 automatic movement, along with its original Omega Beads of Rice bracelet ref. 1037.

  • Condition: Good condition with small age marks and scratches on the case.
  • Case size: 36mm
  • Bracelet size: fits around 7–7.25" wrist
  • Water resistance: not waterproof, vintage watch
Posted at
May 12, 2026, 9:10 AM
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[WTS] Omega Seamaster Planet Ocean 2201.50 42mm with Box & Papers - US Based $4100 Shipped

Omega Seamaster Planet Ocean 2201.50 42mm with Box & Papers - US Based $4100 Shipped

Omega - 2201.50 · $4,100
A Omega Seamaster Planet Ocean 42mm Gen 1, it comes in its original box with papers and manual.

  • Condition: Excellent (minor scratches on bracelet and bezel)
  • Bracelet condition: Minor scratches
  • Crystal condition: Completely fresh
  • Box condition: Great
Posted at
May 12, 2026, 1:01 AM
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[WTS] Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,790

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,790

Omega - 231.10.39.21.01.001 · $2,790
Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001. This watch measures at 38.5mm and has an automatic Omega Calibre 8500 movement.

  • Condition: Very good condition for its age, minimal marks/hairlines
  • Case Size: 38.5mm diameter
  • Movement: Omega Calibre 8500, automatic
Posted at
May 11, 2026, 10:01 PM
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[WTS] Omega Seamaster 300

Omega Seamaster 300

Omega - 234.30.41.21.03.001 · $4,800
A beautiful Omega Seamaster 300 with a striking blue dial and classic design cues, featuring a Cal 8912 Co-Axial movement.

  • Condition: very good
  • Movement: Cal 8912 Co-Axial
  • Size: 41mm diameter
Posted at
May 11, 2026, 9:28 PM
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[WTS] 2019 Omega Seamaster Diver 41mm 212.30.41.20.03.001 Blue No Wave Full Set - $3,795

2019 Omega Seamaster Diver 41mm 212.30.41.20.03.001 Blue No Wave Full Set - $3,795

Omega - 212.30.41.20.03.001 · $3,795
A 2019 Omega Seamaster Diver Blue No Wave, in excellent condition with minimal signs of wear.

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 41mm
  • Depth rating: 200m
Posted at
May 11, 2026, 9:14 PM
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