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.
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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] 1958 Omega Seamaster Ref. 2846 w/ Cal 501 — Large Hippocampus Caseback — $999 OBO + label

1958 Omega Seamaster Ref. 2846 w/ Cal 501 — Large Hippocampus Caseback — $999 OBO + label

Omega - 2846 · $999
A 1958 Omega Seamaster with automatic movement, large hippocampus caseback and original silver sunburst dial. It has a stainless steel case and is on an aftermarket black snakeskin strap.

  • Condition: good considering the age
  • Case diameter: 34.5mm
  • Movement type: automatic
  • Age: 65
Posted at
Apr 23, 2026, 10:12 PM
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[WTS] Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,190

Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,190

Omega - 2222.80 · $2,190
The Omega Seamaster 300M Co-Axial Mid-size is a 36mm automatic watch with an Omega co-axial cal 2500 movement. It features a steel case on original Omega steel bracelet and has all functions working well.

  • Condition: Very good (8.9/10)
  • Case size: 36mm
  • Movement type: co-axial cal 2500
  • Bracelet length: up to 7-7.25 inch wrists
Posted at
Apr 23, 2026, 9:45 PM
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[WTS] Omega Seamaster Pro 300m Monochrome

Omega Seamaster Pro 300m Monochrome

Omega - 210.30.42.20.01.010 · $5,400
A beautiful Omega Seamaster Pro Monochrome in the no date variant, offering a more subtle and contemporary twist for daily wear or refined settings.

  • Condition: Overall great condition with minimal wear
  • Movement: Cal 8806
  • Accessories: Box & Papers
Posted at
Apr 23, 2026, 8:52 PM
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[WTS] Omega Seamaster Aqua Terra 2517.50 39mm HAQ $1650 Shipped

Omega Seamaster Aqua Terra 2517.50 39mm HAQ $1650 Shipped

Omega - 2517.50 · $1,650
This Omega Seamaster Aqua Terra is a great everyday option with a classic black dial look, offering quartz accuracy and maintenance.

  • Condition: Watch only, presents nicely with honest wear and light scratching, accurate HAQ movement
  • Bracelet size: fits 7.25in wrist
  • Movement: HAQ quartz
Posted at
Apr 23, 2026, 6:32 PM
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[WTS] Omega Seamaster NTTD complete set $7,750

Omega Seamaster NTTD complete set $7,750

Omega - Seamaster NTTD · $7,750
This Omega Seamaster is a complete set, including all three cards, leather watch roll, black Omega box, and original cardboard box. It shows very light signs of wear and has never had a strap change.

  • Condition: Very good
  • Warranty Status: Blank (but purchased brand new)
  • Movement Accuracy: +/- 2-3 seconds a day
  • Purchase Location: EMWA in Mérida, Mexico
Posted at
Apr 23, 2026, 6:17 PM
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[WTS] Omega Seamaster 300 Vintage Super Complete Kit Ref. 165.024

Omega Seamaster 300 Vintage Super Complete Kit Ref. 165.024

Omega - 165.024
A vintage Omega Seamaster 300 is being sold as a complete kit with its original documents dating back to January 23, 1970.

  • Type: Seamaster 300 Vintage Super Complete Kit
Posted at
Apr 23, 2026, 6:13 PM
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[WTS] Omega Seamaster Aqua Terra Worldtimer “Summer Blue”

Omega Seamaster Aqua Terra Worldtimer “Summer Blue”

Omega - 220.10.43.22.03.002 · $7,799
The Omega Seamaster Aqua Terra Worldtimer features a beautiful gradient blue dial with a laser-ablated topographic map of the continents, powered by the METAS certified Co-Axial Master Chronometer Caliber 8938.

  • Condition: Brand new old stock and unworn
  • Case size: 43mm diameter
  • Movement: Omega Co-Axial Master Chronometer Caliber 8938
  • Complications: Worldtimer
Posted at
Apr 23, 2026, 4:41 PM
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[WTS] Omega Seamaster Planet Ocean 600m “Sochi 2014” Limited Edition - No. 1629/2014 - Ref. 522.30.46.21.01.001 - Complete Set

Omega Seamaster Planet Ocean 600m “Sochi 2014” Limited Edition - No. 1629/2014 - Ref. 522.30.46.21.01.001 - Complete Set

Omega - 522.30.46.21.01.001 · $4,500
This Omega Seamaster Planet Ocean 600M 'Sochi 2014' Limited Edition is a unique commemorative piece produced in a run of just 2,014 pieces worldwide. It features a case diameter of 45.5mm and a stainless steel case material. The watch has a black dial and a domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides.

  • Condition: Good condition with signs of wear present, consistent with a used watch
  • Case diameter: 45.5mm
  • Lug-to-lug: 51.5mm
  • Thickness: 16.6mm
Posted at
Apr 23, 2026, 4:12 PM
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[WTS] Omega Seamaster 300m Full kit- $4250

Omega Seamaster 300m Full kit- $4250

Omega - 300m 42mm · $4,250
A complete Omega Seamaster 300m full kit, featuring a 42mm case size, undated card and purchase receipt from 2021. It runs well on timegrapher and is overall in good pre-owned condition.

  • Condition: good pre owned condition
  • Water Resistance: 300m depth rating
Posted at
Apr 23, 2026, 3:30 PM
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