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 300m. Box, Cards. 210.30.42.20.06.001

Omega Seamaster 300m. Box, Cards. 210.30.42.20.06.001

Omega - 210.30.42.20.06.001 $3,800
a Seamaster 300m with box and cards, available for sale

  • Box Papers: yes
  • Location: NJ USA
Posted at
Apr 4, 2026, 10:04 AM
Active
[WTS] Omega Seamaster Aqua Terra 150M 38mm Grey Teak Dial | Quartz | Discontinued | Full Set (Travel Case)

Omega Seamaster Aqua Terra 150M 38mm Grey Teak Dial | Quartz | Discontinued | Full Set (Travel Case)

Omega - 231.10.39.61.06.001 $2,590
The Omega Seamaster Aqua Terra 38mm features a grey teak-concept dial and is powered by an Omega quartz movement, offering true grab-and-go convenience.

  • Condition: Excellent overall condition with only light wear
  • Movement: Quartz (Caliber 1538)
  • Case size: 38mm
  • Dial: Grey 'teak concept'
Posted at
Apr 4, 2026, 4:18 AM
Active
[WTS] Omega Seamaster Diver 300M 42mm Two-Tone Blue Dial | Ref. 210.22.42.20.03.001 | 2023 | Full Set | Mint

Omega Seamaster Diver 300M 42mm Two-Tone Blue Dial | Ref. 210.22.42.20.03.001 | 2023 | Full Set | Mint

Omega - 210.22.42.20.03.001 $6,450
The Omega Seamaster Diver 300M features a 42mm stainless steel case with solid 18K yellow gold accents, and is powered by the METAS-certified Co-Axial Master Chronometer Caliber 8800. This modern dive watch design delivers strong wrist presence while remaining versatile.

  • Condition: Mint
  • Case material: stainless steel and 18K yellow gold
  • Movement: Co-Axial Master Chronometer Caliber 8800 (METAS-certified)
  • Depth rating: 300M water resistance
Posted at
Apr 4, 2026, 3:19 AM
Active
[WTS] Omega Seamaster Diver 300M Chronograph 44mm Ref. 210.22.44.51.03.001 | Full Set | Mint Condition

Omega Seamaster Diver 300M Chronograph 44mm Ref. 210.22.44.51.03.001 | Full Set | Mint Condition

Omega - 210.22.44.51.03.001 $9,250
This Omega Seamaster Diver 300M Chronograph is a striking sport-luxury piece with strong wrist presence and everyday versatility, featuring a stainless steel case with 18K yellow gold accents and a blue ceramic bezel.

  • Condition: Mint condition
  • Case size: 44mm
  • Movement: Co-Axial Master Chronometer Caliber 9900 (METAS-certified, anti-magnetic)
  • Water resistance: 300M
Posted at
Apr 4, 2026, 2:04 AM
Active
[wts] Omega Seamaster Planet Ocean 8500 Orange馃槏馃崐 45.5mm 232.32.46.21.01.001

Omega Seamaster Planet Ocean 8500 Orange馃槏馃崐 45.5mm 232.32.46.21.01.001

Omega - 232.32.46.21.01.001 $4,500
Additional Details: Model: Omega Seamaster Planet Ocean 8500 45.5mm

  • Condition: great condition
  • Case size: 45.5mm diameter
Posted at
Apr 3, 2026, 11:22 PM
Active
[wts] Omega Seamaster Planet Ocean Chronograph 45.5mm 232.30.46.51.01.001

Omega Seamaster Planet Ocean Chronograph 45.5mm 232.30.46.51.01.001

Omega - 232.30.46.51.01.001 $4,500
A Omega Seamaster Planet Ocean Chronograph with a 45.5mm case, this watch features chronograph functionality.

  • Condition: Excellent condition and full set
  • Case size: 45.5mm
Posted at
Apr 3, 2026, 11:20 PM
Active
[WTS] Omega Seamaster 300M

Omega Seamaster 300M

Omega - 300M $5,250
A pre-owned Omega Seamaster 300M with original links, box and papers, extra silicone bracelet, and a comfort issue.

  • Condition: Pre-owned with visible signs of wear on the bracelet
  • Bracelet condition: Visible signs of wear
  • Extra accessories: Original links, extra omega silicone bracelet, box, papers
Posted at
Apr 3, 2026, 10:12 PM
Active
[WTS] OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 馃敟$4,150馃敟

OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 馃敟$4,150馃敟

OMEGA - 232.32.42.21.01.003 $4,150
The OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 is a robust and elegant dive watch that embodies OMEGA's commitment to ocean exploration and precision engineering.

  • Condition: VERY GOOD, few superficial scratches on case
  • Water resistance: 600m (2000ft)
  • Movement: Co-Axial Caliber 8500
  • Case size: 42mm
Posted at
Apr 3, 2026, 8:56 PM
Active
[WTS] OMEGA Seamaster Bullhead Co-Axial Chronograph Ref. 225.12.43.50.01.001 - ULTIMATE SET! 馃敟$10,000馃敟

OMEGA Seamaster Bullhead Co-Axial Chronograph Ref. 225.12.43.50.01.001 - ULTIMATE SET! 馃敟$10,000馃敟

OMEGA - 225.12.43.50.01.001 $10,000
The OMEGA Seamaster Bullhead Ref. 225.12.43.50.01.001 is a cult classic reborn, paying tribute to the iconic 1969 original.

  • Condition: [UNWORN] Watch is unworn and fully stickered.
  • Maker: OMEGA
  • Model name: Seamaster Bullhead
  • Movement type: Co-Axial Calibre 3113 automatic movement
Posted at
Apr 3, 2026, 8:55 PM
Active