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] 1962 Omega Seamaster ref. 14763 w/ Cal. 562 – serviced May 2026 – 35mm gold-capped case – $1,150

1962 Omega Seamaster ref. 14763 w/ Cal. 562 – serviced May 2026 – 35mm gold-capped case – $1,150

Omega - 14763 · $1,150
A 1962 Omega Seamaster ref. 14763 with a 35mm gold-capped case, powered by an automatic movement. It has been serviced in May 2026 and is running well.

  • Condition: Good condition with some light aging and small spotting on the dial, normal scratches and small dents/dings on the case
  • Case size: 35mm diameter
  • Movement caliber: Omega Cal. 562
  • Crystal type: Original Omega plexi crystal
Posted at
May 4, 2026, 10:00 AM
Active
View listing on r/WatchExchange
[WTS] 2021 Omega Seamaster Diver Tokyo 522.30.42.20.04.001 White Wave 42MM

2021 Omega Seamaster Diver Tokyo 522.30.42.20.04.001 White Wave 42MM

Omega - 522.30.42.20.04.001 · $5,400
The watch is a 2021 Omega Seamaster Diver Tokyo, 42MM in size, with a white wave design.

  • Condition: Mint
  • Box Condition: Inner and outer box show signs of wear
  • Bracelet Links: 11 links
  • Wrist Size Fit: 7.25 inches
Posted at
May 4, 2026, 12:04 AM
Active
View listing on r/WatchExchange
[WTS] OMEGA Seamaster 300M Professional No-Date 🔥Excellent 2025 Full Kit

OMEGA Seamaster 300M Professional No-Date 🔥Excellent 2025 Full Kit

OMEGA - 210.32.42.20.01.003 · $5,199
This Omega Seamaster 300M Professional No-Date is a new model that was launched last year, featuring a 42mm case and 300m water resistance.

  • Condition: Excellent
  • Case size: 42mm diameter
  • Water resistance: 300m
Posted at
May 3, 2026, 10:16 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean 2201.51 42mm Box and Card - $2,850

Omega Seamaster Planet Ocean 2201.51 42mm Box and Card - $2,850

Omega - Planet Ocean 2201.51 · $2,850
Up for sale is my great condition Omega Seamaster Planet Ocean 2201.51, measuring at 42mm with an automatic Omega Calibre 2500 movement. It has a steel case on original Omega steel bracelet and comes in double box, cards, manual, and watch on original bracelet.

  • Condition: Very good condition for its age with minimal marks/hairlines
  • Case size: 42mm diameter
  • Bracelet length: fits up to 7-7.25 inch wrists
  • Movement type: automatic
Posted at
May 3, 2026, 9:00 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean 2201.50 42mm - $2,650 - US BASED!

Omega Seamaster Planet Ocean 2201.50 42mm - $2,650 - US BASED!

Omega - 2201.50 · $2,650
Up for sale is my Omega Seamaster Planet Ocean 2201.50 in great condition for its age, measuring at 42mm with an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition, minimal marks/hairlines on case and bracelet
  • Movement: Omega Calibre 2500, automatic
  • Bracelet length: not specified
Posted at
May 3, 2026, 8:52 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Aqua Terra 2504.50 36mm - $2,490

Omega Seamaster Aqua Terra 2504.50 36mm - $2,490

Omega - 2504.50 · $2,490
Up for sale is my Omega Seamaster Aqua Terra 2504.50.00, a great condition automatic watch measuring 36mm.

  • Condition: Great condition with minor patina on dial indices and hands, dust, and handprints
  • Case material: Steel
  • Bracelet material: Original Omega Steel bracelet
  • Crystal type: Sapphire crystal
Posted at
May 3, 2026, 8:37 PM
Active
View listing on r/WatchExchange
[WTS] Serviced Omega Seamaster Planet Ocean 2201.50 (Gen 1) 42mm

Serviced Omega Seamaster Planet Ocean 2201.50 (Gen 1) 42mm

Omega - 2201.50 · $3,850
First generation Omega Seamaster Planet Ocean 42mm in great condition, running well, with a few minor marks on the clasp and lug.

  • Condition: Extremely good condition, minimal marks and swirls
  • Movement: 2500C
  • Bracelet size: 7.25 inch
  • Additional strap and buckle: Omega OEM rubber strap and buckle
Posted at
May 3, 2026, 7:39 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300M James Bond 50th Anniversary Limited Edition | Ref. 212.30.41.20.01.005 | Watch + Box + 1 Year Seller Warranty on Movement | $4495 |

Omega Seamaster Diver 300M James Bond 50th Anniversary Limited Edition | Ref. 212.30.41.20.01.005 | Watch + Box + 1 Year Seller Warranty on Movement | $4495 |

Omega - 212.30.41.20.01.005 · $4,495
The Omega Seamaster Diver 300M James Bond 50th Anniversary is a highly collectible limited edition watch, released to celebrate 50 years of James Bond. It features a black dial with a subtle 007 motif and commemorative design details. Powered by the Omega Calibre 2507, this 41mm reference offers classic wearability with added collector appeal.

  • Condition: Very good condition
  • Movement: Omega Calibre 2507
  • Case size: 41mm
  • Water resistance: 300m
Posted at
May 3, 2026, 6:21 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 · $3,250
This Omega Seamaster Diver is a 41mm watch with an unknown service history, but it comes with its original box and papers, except for the terrible condition of the boxes.

  • Condition: Good Pre-Owned
  • Case Size: 41mm diameter
  • Contents: 11 links, warranty card, box, manual, pictogram card, card holder
Posted at
May 3, 2026, 5:04 PM
Active
View listing on r/WatchExchange