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 2252.50 Mid Size Peter Blake 36mm Box and Cards - $2,600 - Reserved Post for u/gangnamgoo

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Omega - 2252.50 · $2,600
Up for sale is a Omega Seamaster 2252.50 in great condition. This watch measures at 36mm and has the Calibre Omega 1120 Automatic movement.

  • Condition: 8.8/10
  • Case size: 36mm diameter
  • Movement: Calibre Omega 1120 Automatic
  • Condition rating: 8.8/10
Posted at
May 5, 2026, 9:24 PM
Active
[WTS] Omega Seamaster 2531.80 41mm - $2,290

Omega Seamaster 2531.80 41mm - $2,290

Omega - 2531.80 · $2,290
Up for sale is my very good condition Omega Seamaster 2531.80, a 41mm watch with self-winding movement, in great shape for its age.

  • Condition: Very good condition
  • Case size: 41mm diameter
  • Movement type: self-winding
  • Bracelet type: original Omega steel bracelet
Posted at
May 5, 2026, 9:21 PM
Active
[WTS] OMEGA Seamaster Diver 300M Chronograph Grey Dial 210.30.44.51.06.001

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  • Condition: Excellent pre-owned condition
  • Case size: 44mm
  • Movement rating: Master Chronometer
Posted at
May 5, 2026, 8:37 PM
Active
[WTS] Omega Seamaster Professional Planet Ocean 600m - 42mm - 2201.51

Omega Seamaster Professional Planet Ocean 600m - 42mm - 2201.51

Omega - 2201.51 · $2,995
This Omega Seamaster Planet Ocean is a 42mm everyday diver in great condition, featuring a timegrapher photo and wrist size details.

  • Condition: Pre-owned, great condition with light wear
  • Case size: 42mm diameter
  • Depth rating: 600m
Posted at
May 5, 2026, 5:45 PM
Active
[WTS] 2018 Omega Seamaster Aqua Terra 150M 38.5mm Teak - 231.10.39.21.02.001 - Box & Papers

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Aqua Terra in perfect size, suitable for everyday wear with any outfit.

  • Condition: Excellent condition
  • Case size: 38.5mm diameter
Posted at
May 5, 2026, 3:36 PM
Active
[WTS] Omega Seamaster Diver 300M 42mm 210.32.42.20.01.001 | No Box/Papers | Verified Authentic | $3,900

Omega Seamaster Diver 300M 42mm 210.32.42.20.01.001 | No Box/Papers | Verified Authentic | $3,900

This Omega Seamaster Diver 300M features a 42mm stainless steel case, black wave dial, and black ceramic bezel.

  • Condition: Excellent overall
  • Case size: 42mm diameter
  • Dial color: Black
  • Bezel material: Ceramic
Posted at
May 5, 2026, 3:19 PM
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[WTS] Omega SMP 300 Seamaster Seaweed Green

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  • Condition: pre-owned (worn with care)
  • Warranty Date: August 29, 2023
  • Shipping Terms: Zelle F+F preferred, will also accept PayPal F+F
Posted at
May 5, 2026, 3:11 PM
Active
[WTS] Omega / Seamaster Planet Ocean / 45.5mm / Full Set

Omega / Seamaster Planet Ocean / 45.5mm / Full Set

This Omega Seamaster Planet Ocean is a high-end watch featuring a 45.5mm case, full set with box and papers, and includes extra links for adjustability.

  • Condition: Excellent
  • Case Size: 45.5mm
Posted at
May 5, 2026, 3:09 PM
Active
[WTS] Omega Seamaster Professional Diver 300m Blue Dial Steel No Wave Reference 212.30.41.20.03.001 Box and Card dated 2019

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This Omega Seamaster Professional Diver features a blue dial, is 41mm in size and has a water resistance of 300m.

  • Condition: Excellent
  • Case size: 41mm
  • Depth rating: 300m
  • Water resistance: Screw-down crown
Posted at
May 5, 2026, 2:29 PM
Active