Omega Seamaster Seamaster Master Co-Axial 39.5 Hong Kong Edition Stainless Steel / Red / Alligator

Reference 511.13.40.20.11.001

Omega Seamaster Master Co-Axial 39.5 Hong Kong Edition Stainless Steel / Red / Alligator

About this watch

The Omega Seamaster Master Co-Axial 39.5 Hong Kong Edition is a masterpiece of horological innovation. This stunning timepiece boasts a vibrant red dial, paired with an elegant alligator leather strap and a durable stainless steel case. The Omega Caliber 8800 self-winding movement is a marvel of engineering, featuring a Co-Axial escapement that reduces friction and enhances accuracy. Certified as a Master Chronometer by METAS, this watch is resistant to magnetic fields up to 15,000 gauss. With a power reserve of 55 hours and water resistance of 60 meters, it's perfect for everyday wear and special occasions. The limited production run of only 399 units makes it a highly sought-after collector's piece.
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Key Features

  • Self-winding Omega Caliber 8800 movement
  • Co-Axial escapement for improved accuracy
  • Master Chronometer certification by METAS
  • Water resistance up to 60 meters
  • Power reserve of 55 hours
  • Stainless steel case with durable design
  • Scratch-resistant sapphire crystal
  • Elegant alligator leather strap

Specifications

Brand
Omega
Family
Seamaster
Model
Seamaster Master Co-Axial 39.5 Hong Kong Edition Stainless Steel / Red / Alligator
Reference
511.13.40.20.11.001
Movement
8800
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 39.5mm
Dial Color
Red
Crystal
Sapphire
Water Resistance
60

Current Listings

[WTS] Omega Seamaster Aqua Terra 150M - Full Set - Near Mint

Omega Seamaster Aqua Terra 150M - Full Set - Near Mint

Omega - 220.10.41.21.10.001 · $4,500
The Seamaster Aqua Terra is a tribute to OMEGA's rich maritime heritage, featuring a stainless steel case with a wave-edged design and a green sun-brushed dial with a horizontal "teak" pattern.

  • Condition: New in box - Near Mint
  • Case diameter: 41mm
  • Crystal type: Domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides
  • Caliber: Omega 8900
Posted at
Apr 30, 2026, 3:35 PM
Active
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[WTS] Omega Seamaster Diver – Ref 210.30.42.20.06.001 – Very Good – Full Set = OM Strap

Omega Seamaster Diver – Ref 210.30.42.20.06.001 – Very Good – Full Set = OM Strap

Omega - 210.30.42.20.06.001 · $4,750
This Omega Seamaster Diver features a blue ceramic bezel and gray wave dial, powered by the Calibre 8800 Co-Axial Master Chronometer with a 55hr power reserve, 300m water resistance, and METAS certification for anti-magnetism to 15,000 gauss. The watch is in very good condition, with a clean dial and no marks on the crystal or case, but some light wear on the bracelet.

  • Condition: Very Good
  • Bezel material: blue ceramic
  • Dial color: gray wave
  • Water resistance: 300m
Posted at
Apr 30, 2026, 3:25 PM
Active
View listing on r/WatchExchange
[WTS] Vintage Omega Seamaster 30 - Pakistan AirForce - AM dial - 1960s.

Vintage Omega Seamaster 30 - Pakistan AirForce - AM dial - 1960s.

Omega - 135.011 · $2,000
A vintage Omega Seamaster 30, a rare military collectible watch produced for the Pakistan Air Force in the 1960s, featuring a manual winding mechanism and historical significance.

  • Condition: Pre-owned
  • Caliber: Cal 601
  • Size: 34-35mm diameter
  • Movement: Manual/hand wind
Posted at
Apr 30, 2026, 1:00 PM
Active
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[WTS] Omega Seamaster Aqua Terra 2503.80.00 — Blue Sunburst Dial — 39.2mm — Fresh Service — $2,799 Shipped (Tariff Covered)

Omega Seamaster Aqua Terra 2503.80.00 — Blue Sunburst Dial — 39.2mm — Fresh Service — $2,799 Shipped (Tariff Covered)

Omega - 2503.80.00 · $2,799
This Omega Seamaster Aqua Terra features a blue sunburst dial and is powered by the Cal. 2500 Co-Axial automatic movement, recently serviced.

  • Condition: Excellent overall condition with normal signs of wear
  • Case diameter: 39.2mm
  • Case thickness: ~11.2mm
  • Lug width: 20mm
Posted at
Apr 30, 2026, 12:11 PM
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[WTS] 2024 Omega Seamaster Diver 300M 210.30.42.20.10.001 Green Seaweed Full Set - $5,395

2024 Omega Seamaster Diver 300M 210.30.42.20.10.001 Green Seaweed Full Set - $5,395

Omega - 210.30.42.20.10.001 · $5,395
A 2024 Omega Seamaster Diver 300M in Green Seaweed, a high-end diver's watch featuring a 42mm case and excellent condition.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2024
  • Depth rating: 300m
Posted at
Apr 30, 2026, 9:58 AM
Active
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[WTS] 2020 Omega Seamaster Diver 41mm 212.30.41.20.01.003 Black Full Set - $3,795

2020 Omega Seamaster Diver 41mm 212.30.41.20.01.003 Black Full Set - $3,795

Omega - 212.30.41.20.01.003 · $3,795
Up for sale is a 2020 Omega Seamaster Diver Black, featuring a 41mm case size.

  • Condition: Excellent condition with minimal signs of wear.
  • Case Diameter: 41mm
  • Year: 2020
Posted at
Apr 30, 2026, 9:56 AM
Active
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[WTS] 2025 Omega Seamaster Planet Ocean 600m Titanium Blue 232.92.44.22.03.001 Full Set - $4,995

2025 Omega Seamaster Planet Ocean 600m Titanium Blue 232.92.44.22.03.001 Full Set - $4,995

Omega - 232.92.44.22.03.001 · $4,995
Up for sale is a Omega Seamaster Planet Ocean 600m Titanium Blue, a watch that features a 2025 model year and has been thoroughly tested on a timegrapher.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2025
  • Case material: Titanium
  • Water resistance: 600m
Posted at
Apr 30, 2026, 9:54 AM
Active
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[WTS] Omega Seamaster Aqua Terra 2504.80.00 — 36.2mm Blue Sunburst Dial — Fresh Serviced — $2,799 Shipped (Tariff Covered)

Omega Seamaster Aqua Terra 2504.80.00 — 36.2mm Blue Sunburst Dial — Fresh Serviced — $2,799 Shipped (Tariff Covered)

Omega - 2504.80.00 · $2,799
This Omega Seamaster Aqua Terra features a blue sunburst dial and is powered by an Omega Cal. 2500 Co-Axial automatic movement, which has recently been serviced.

  • Condition: Excellent
  • Case size: 36.2mm
  • Lug width: 18mm
  • Thickness: 11mm
Posted at
Apr 30, 2026, 9:52 AM
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[WTS] Omega Seamaster Pro SMP 300M Black Full Set - $5500

Omega Seamaster Pro SMP 300M Black Full Set - $5500

Omega - 300M · $5,500
An Omega Seamaster Pro SMP 300M in good condition, looking great and very robust.

  • Condition: 9.3/10 - minor scratches on the watch head and bracelets
  • Bracelet Types: 4 types: steel, mesh, nato, rubber
  • Working Condition: perfect working condition
Posted at
Apr 30, 2026, 9:49 AM
Active
View listing on r/WatchExchange