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] Omega Seamaster Professional 300M Mid-Size Ref. 2551.80 | Automatic Chronometer | With Box | Great Condition | All Original | $2300 (SERVICED)

Omega Seamaster Professional 300M Mid-Size Ref. 2551.80 | Automatic Chronometer | With Box | Great Condition | All Original | $2300 (SERVICED)

The Omega Seamaster Professional 300M Mid-Size Ref. 2551.80 is a 36 mm automatic chronometer with a blue wave dial and sharp luminous markers.

Posted at
May 2, 2026, 9:30 AM
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[WTS] Omega Seamaster Planet Ocean 2201.50 | 42mm | Full Set | Very Good Condition $3700

Omega Seamaster Planet Ocean 2201.50 | 42mm | Full Set | Very Good Condition $3700

Omega - 2201.50 · $3,700
For sale is an Omega Seamaster Planet Ocean 2201.50, one of Omega’s most respected modern divers and an outstanding value in luxury sports watches.

  • Condition: Very Good Condition
  • Case size: 42mm
  • Water resistance: 600M
  • Movement type: Omega Co-Axial automatic movement
Posted at
May 2, 2026, 8:01 AM
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[WTS] Omega Seamaster GMT 231.10.43.52.06.001 – Full Set – Grey Dial – 2014 – $3,850

Omega Seamaster GMT 231.10.43.52.06.001 – Full Set – Grey Dial – 2014 – $3,850

Omega - 231.10.43.52.06.001 · $3,850
A sharp, highly versatile Speedmaster with excellent wrist presence and everyday wearability.

  • Condition: Good condition
  • Year: 2014
  • Bracelet material: Stainless steel
  • Movement type: Automatic
Posted at
May 2, 2026, 7:51 AM
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[wts] RARE Omega Seamaster Planet Ocean 2500D 45.5mm 2200.50.00

RARE Omega Seamaster Planet Ocean 2500D 45.5mm 2200.50.00

Omega - 2200.50.00 · $3,590
This Omega Seamaster Planet Ocean is a rare model featuring a 45.5mm case, making it a unique and eye-catching timepiece.

  • Condition: Excellent
  • Case Diameter: 45.5mm
Posted at
May 1, 2026, 10:22 PM
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[wts] Omega Seamaster Planet Ocean 8900 Blue 43.5mm 215.30.44.21.03.001 underwarranty

Omega Seamaster Planet Ocean 8900 Blue 43.5mm 215.30.44.21.03.001 underwarranty

Omega - 215.30.44.21.03.001 · $4,600
The Omega Seamaster Planet Ocean 8900 Blue features a 43.5mm case size and is still under warranty until November 2028.

  • Warranty Valid Through: NOV 2028
  • Shipping Method: FedEx
  • Available Payment Methods: Zelle, Venmo, Wire, Apple Pay
Posted at
May 1, 2026, 10:20 PM
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[wts] Omega Seamaster Planet Ocean 8900 Blue 43.5mm 215.30.44.21.03.001 under warranty

Omega Seamaster Planet Ocean 8900 Blue 43.5mm 215.30.44.21.03.001 under warranty

Omega - 215.30.44.21.03.001 · $4,600
This Omega Seamaster Planet Ocean is a 43.5mm model under warranty until September 2028, complete with its boxes in great condition.

  • Condition: like new
  • Warranty Valid Until: SEP 2028
  • Boxes Condition: great
Posted at
May 1, 2026, 10:18 PM
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[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
The Omega Seamaster Planet Ocean Chronograph is a 45.5mm watch featuring a chronograph function.

  • Condition: Excellent condition
  • Case Size: 45.5mm diameter
  • Payment Methods: Zelle, Venmo, wire transfer, Apple Pay
Posted at
May 1, 2026, 10:16 PM
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[wts] Omega Seamaster Planet Ocean 8500 Orange😍🍊 45.5mm 232.32.46.21.01.001

Omega Seamaster Planet Ocean 8500 Orange😍🍊 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, a 2 - 3 sentence summary of the watch in the listing is not directly available, but it's an Omega Seamaster Planet Ocean 8500 with a 45.5mm case.

  • Condition: great condition
  • Case diameter: 45.5mm
  • Movement: 8500
Posted at
May 1, 2026, 10:13 PM
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[WTS] (Omega) Seamaster Aqua Terra 2517.50 $2,099

(Omega) Seamaster Aqua Terra 2517.50 $2,099

Omega - 2517.50 · $2,099
For sale is my 1st gen Omega Seamaster Aqua Terra, reference 2517.50. This is the 39mm, black dial, quartz variant. The watch is in great external condition and internally functioning as intended.

  • Condition: Great external condition, good internal condition
  • Case size: 39mm
  • Movement type: quartz
Posted at
May 1, 2026, 9:37 PM
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