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] Omega Seamaster 200 “Banana” 166.068 — Vintage Preowned Condition, Watch Only

Omega Seamaster 200 “Banana” 166.068 — Vintage Preowned Condition, Watch Only

Omega - 166.068 · $3,000
The Omega Seamaster 200 “Banana” 166.068 is a distinctive vintage dive watch known for its bold yellow-toned rotating bezel insert, earning it the “Banana” nickname among collectors. It features a classic stainless steel case with vintage Seamaster styling and delivers strong character and everyday wearability.

  • Condition: vintage preowned condition, healthy case, marks on the crystal, running great at +2 seconds per day with amplitude over 260
  • Diameter: 41mm
  • Lug to lug: 47mm
  • Thickness: 11.5mm
Posted at
May 25, 2026, 9:10 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Calendar 2627 Goldcapped $950

Omega Seamaster Calendar 2627 Goldcapped $950

Omega - 2627 · $950
a beautiful goldcapped Omega Seamaster Calendar from 1952, measuring 35mm in diameter and 41.5mm lug to lug, featuring a stainless steel goldcapped case with a 14k layer, a bumper Omega cal. 355 movement, dauphine hands, Arabic 3-9-12 hour markers, and a trapezoid date window at 6 o'clock

  • Condition: great condition with signs of wear
  • Case Size: 35mm diameter
  • Lug To Lug: 41.5mm
  • Lug Width: 18mm
Posted at
May 25, 2026, 9:04 AM
Active
View listing on r/WatchExchange
[WTS] Authentic Omega OEM Seaweed Green Rubber Strap – 20mm – Seamaster Professional - SMP 300M (42mm) On Unbranded Aftermarket Clasp

Authentic Omega OEM Seaweed Green Rubber Strap – 20mm – Seamaster Professional - SMP 300M (42mm) On Unbranded Aftermarket Clasp

Omega - 300M (42mm) · $185
A used Omega OEM Seaweed Green rubber strap for the Seamaster Professional 300M, available for sale.

  • Color: Seaweed Green
  • Width: 20mm
Posted at
May 25, 2026, 8:17 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,590

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,590

Omega - 231.10.39.21.01.001 · $2,590
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
  • Case size: 38.5mm
  • Movement: Automatic Omega Calibre 8500
  • Bracelet material: Steel
Posted at
May 24, 2026, 9:01 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Aqua Terra “Turquoise Shades” 41mm Reduced

Omega Seamaster Aqua Terra “Turquoise Shades” 41mm Reduced

Omega - 220.10.41.21.03.006 · $5,900
Up for sale is my Omega Seamaster Aqua Terra Shades in the stunning turquoise lacquer dial configuration, featuring a sunburst/turquoise gradient effect that shifts beautifully in different lighting.

  • Condition: Pretty good overall condition with normal signs of wear
  • Case size: 41mm
  • Movement: Omega Co-Axial Master Chronometer Caliber 8900
  • Power reserve: 60 Hours
Posted at
May 24, 2026, 5:55 PM
Active
View listing on r/WatchExchange
[WTS][US] Omega Seamaster SMP300 - Blue Dial - Sedna Gold - 42mm - 210.20.42.20.03.002 - Full Set

[US] Omega Seamaster SMP300 - Blue Dial - Sedna Gold - 42mm - 210.20.42.20.03.002 - Full Set

Omega - 210.20.42.20.03.002 · $6,900
Up for sale is an Omega Seamaster SMP300 - Blue Dial - Sedna Gold - 42mm watch that functions perfectly mechanically without issue.

  • Condition: Fantastic condition with minor hairlines
  • Case material: Sedna Gold
  • Diameter: 42mm
Posted at
May 24, 2026, 3:06 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster 300

Omega Seamaster 300

Omega - 168.1622 · $800
This Omega Seamaster 300 is a first-generation automatic watch, featuring a caliber 1120 and measuring 36mm in diameter. It's an excellent dive watch for everyday use.

  • Condition: Excellent, some natural wear and tear due to its age
  • Caliber: 1120
  • Case size: 36 mm
  • Water resistance: Not specified
Posted at
May 24, 2026, 11:56 AM
Active
View listing on r/WatchExchange
[WTS] 2019 Omega Seamaster Diver 41mm 212.30.41.20.01.003 Black Full Set - $3,795

2019 Omega Seamaster Diver 41mm 212.30.41.20.01.003 Black Full Set - $3,795

Omega - 212.30.41.20.01.003 · $3,795
A black Omega Seamaster Diver from 2019, available in a full set including boxes and warranty.

  • Condition: Excellent condition with minimal signs of wear.
  • Case size: 41mm
Posted at
May 24, 2026, 11:45 AM
Active
View listing on r/WatchExchange
[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
This listing is for a 2019 Omega Seamaster Diver Blue No Wave, which features a 41mm case size and comes in excellent condition.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2019
  • Case size: 41mm
  • Contents: Watch, Inner & Outer Box, Card Holder, International Warranty Card, Pictograms Card, Instructions Manual
Posted at
May 24, 2026, 11:44 AM
Active
View listing on r/WatchExchange