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] Omega Seamaster Planet Ocean 2200.51 – 42mm – Full Set – $4,195

Omega Seamaster Planet Ocean 2200.51 – 42mm – Full Set – $4,195

Omega - 2200.51 · $4,195
The Omega Seamaster Planet Ocean is a great everyday diver featuring the Co-Axial movement in a 42mm case, with strong build quality and classic design.

  • Condition: Very clean overall with light wear consistent with age
  • Case size: 42mm diameter
  • Water resistance: 600m depth rating
  • Movement: Caliber 2500 (Co-Axial)
Posted at
Mar 27, 2026, 10:40 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Aqua Terra 38.5mm 231.23.39.21.06.001 – Gold Bezel – Full Set – $5199

Omega Seamaster Aqua Terra 38.5mm 231.23.39.21.06.001 – Gold Bezel – Full Set – $5199

Omega - 231.23.39.21.06.001 · $5,199
a luxury watch from Omega's Seamaster Aqua Terra collection, featuring a gold bezel and measuring 38.5mm in diameter.

  • Size: 38.5mm diameter
Posted at
Mar 27, 2026, 10:27 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster — Ref. 212.30.36.20.01.001

Omega Seamaster — Ref. 212.30.36.20.01.001

Omega - 212.30.36.20.01.001
  • Image Link: https://imgur.com/a/2F0ivcM
Posted at
Mar 27, 2026, 10:24 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Professional 300M — Ref. 2531.80.00

Omega Seamaster Professional 300M — Ref. 2531.80.00

Omega - 2531.80.00
Omega Seamaster Professional 300M for sale, with additional details not specified.

Posted at
Mar 27, 2026, 10:23 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean 600M – 232.92.42.21.03.001 – 42mm Titanium – $4,895

Omega Seamaster Planet Ocean 600M – 232.92.42.21.03.001 – 42mm Titanium – $4,895

Omega - 232.92.42.21.03.001 · $4,895
This Omega Seamaster Planet Ocean 600M is a 42mm titanium watch.

Posted at
Mar 27, 2026, 10:22 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Professional 300M 212.30.41.20.01.002 - $3,150 Shipped CONUS

Omega Seamaster Professional 300M 212.30.41.20.01.002 - $3,150 Shipped CONUS

Omega - 212.30.41.20.01.002 · $3,150
This is a previous-generation 41mm ceramic Omega Seamaster Professional, widely considered the sweet spot of the modern SMP lineup. It has a modern ceramic bezel and co-axial chronometer movement without the added bulk of newer models.

  • Condition: Very good overall
  • Case diameter: 41mm
  • Thickness: 12.8mm
  • Water resistance: 300m
Posted at
Mar 27, 2026, 8:54 AM
Active
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[WTS] [EU] Omega Seamaster 300m 41mm Automatic Peter Blake 22545000

[EU] Omega Seamaster 300m 41mm Automatic Peter Blake 22545000

Omega - 22545000 · $2,950
For sale is a fullsize Omega Seamaster 300mm, also known as the Peter Blake. It has an automatic movement and has been serviced in July 2025.

  • Condition: Serviced
  • Movement type: Automatic
  • Case size: 41mm
  • Water resistance: 300m
Posted at
Mar 27, 2026, 5:53 AM
Active
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[WTS] Omega Seamaster Diver 300M — Ref. 210.30.42.20.03.001

Omega Seamaster Diver 300M — Ref. 210.30.42.20.03.001

Omega - 210.30.42.20.03.001 · $4,000
a luxury Omega Seamaster Diver 300M, a high-end dive watch with features including date display and unidirectional rotating bezel.

Posted at
Mar 27, 2026, 4:20 AM
Active
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[WTS] Omega Seamaster Professional 300m on Black Rubber

Omega Seamaster Professional 300m on Black Rubber

Omega - SMP300 · $5,000
First time seller is selling their Omega Seamaster Professional 300m on black rubber, purchased brand new in November 2025 and still under warranty.

  • Condition: pristine
  • Purchase location: Japan
  • Depth rating: 300m
Posted at
Mar 26, 2026, 11:41 PM
Active
View listing on r/WatchExchange