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.
Buy Now on Jomashop
This is an affiliate link

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][US] Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 232.30.46.21.01.001 - Full Set

[US] Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 232.30.46.21.01.001 - Full Set

Omega - 232.30.46.21.01.001 · $4,550
A Planet Ocean watch from Omega with a black dial, 45.5mm in size, featuring a mechanical movement.

  • Condition: Fantastic with minor hairlines
  • Case Size: 45.5mm
  • Depth Rating: 600m
Posted at
Apr 2, 2026, 8:09 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M (210.30.42.20.03.001)

Omega Seamaster Diver 300M (210.30.42.20.03.001)

Omega - 210.30.42.20.03.001 · $4,350
This Omega Seamaster Diver 300M features a blue dial/bezel on a steel bracelet, with boxes and papers included.

  • Condition: Very good condition with a few light marks
  • Case size: 42mm diameter
  • Bracelet material: Steel
  • Crystal type: Sapphire
Posted at
Apr 2, 2026, 6:53 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster 300M chronograph, full kit, 210.32.44.51.01.001 $5475

Omega Seamaster 300M chronograph, full kit, 210.32.44.51.01.001 $5475

Omega - 210.32.44.51.01.001 · $5,475
This Omega Seamaster 300M chronograph features a 44mm case with 300m water resistance, 60hr power reserve, and comes in a full kit with inner and outer box, all cards, and manual. It has a massive wrist presence and perfect for those who want to stand out.

  • Condition: Excellent
  • Water Resistance: 300m
  • Size: 44mm diameter
  • Power Reserve: 60 hours
Posted at
Apr 1, 2026, 11:13 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 41mm 212.30.41.20.03.001 - Undated Box and Papers

Omega Seamaster Diver 41mm 212.30.41.20.03.001 - Undated Box and Papers

Omega - 212.30.41.20.03.001 · $3,350
This Omega Seamaster Diver is a 41mm watch with an undated box and papers, featuring a crystal and bezel clean condition. It comes with multiple accessories, including an inner box, divers extension, and travel pouch.

  • Condition: Good Pre-Owned Condition
  • Length: 11 links + divers extension
  • Depth rating: unknown
  • Service history: unknown
Posted at
Apr 1, 2026, 9:49 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Professional 42mm 210.32.42.20.03.001 | 2020 Full Set

Omega Seamaster Professional 42mm 210.32.42.20.03.001 | 2020 Full Set

Omega - 210.32.42.20.03.001 · $4,050
2020 Omega Seamaster Professional 300M in great condition with crystal/bezel clean and a full set of accessories.

  • Condition: Pre-Owned, great condition with slight wear on case and clasp
  • Case dimensions: 42mm diameter
  • Depth rating:
  • Water resistance:
Posted at
Apr 1, 2026, 9:47 PM
Active
View listing on r/WatchExchange
[WTS] *Very Rare Config* Omega Seamaster Diver 300M 168.1503 / 368.1503 Two-Tone White Wave Dial – Full Size 41mm Automatic

*Very Rare Config* Omega Seamaster Diver 300M 168.1503 / 368.1503 Two-Tone White Wave Dial – Full Size 41mm Automatic

Omega - 168.1503 / 368.1503 · $3,820
This is a rare, early 1990s Omega Seamaster Diver 300M in a full-size, 41mm automatic configuration featuring a white wave dial and yellow gold accents. It's one of the cleanest examples of this transitional-era piece with classic Seamaster DNA.

  • Condition: Normal wear for its age with light scratches on case/bracelet
  • Case size: 41mm diameter
  • Movement: cal. 1109 automatic movement
  • Bracelet type: Original Omega bracelet
Posted at
Apr 1, 2026, 8:45 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Aqua Terra Blue 231.13.42.21.03.001 2023 B&P

Omega Seamaster Aqua Terra Blue 231.13.42.21.03.001 2023 B&P

Omega - 231.13.42.21.03.001 · $3,549
This Omega Seamaster Aqua Terra Blue is a 2023 model with box and papers, featuring leather strap.

  • Condition: Excellent
  • Box And Papers: 2023 box and papers
  • Leather Condition: pre owned but in great shape
Posted at
Apr 1, 2026, 8:32 PM
Active
View listing on r/WatchExchange
[WTS] 1972 Omega Seamaster ref. 168.0061 w/ Chronometer Cal. 1011 on original BOR 1036/11 – $1250 shipped

1972 Omega Seamaster ref. 168.0061 w/ Chronometer Cal. 1011 on original BOR 1036/11 – $1250 shipped

Omega - 168.0061 · $1,250
A 1972 Omega Seamaster with Chronometer Cal. 1011 and original BOR ref. 1036/11. This watch features a stainless steel case, automatic movement, and correct original accessories.

  • Movement: Chronometer Cal. 1011, automatic
  • Case size: 35mm diameter
  • Lug width: 18mm
Posted at
Apr 1, 2026, 7:39 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Aqua Terra 41mm

Omega Seamaster Aqua Terra 41mm

Omega - 220.10.41.21.03.001 · $4,300
This 41mm Aqua Terra in teakwood blue is a beautifully crafted watch that has been well-maintained and comes with its original box, chronometer card, and a recent service record. Its stylish design and comfortable OEM rubber strap make it an attractive timepiece.

  • Condition: Pre-owned, serviced by Omega within the last 2 months
  • Bracelet type: Blue rubber strap
  • Case size: 41mm
Posted at
Apr 1, 2026, 7:17 PM
Active
View listing on r/WatchExchange