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

Reference 511.13.40.20.11.001

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 OEM Seaweed Green Rubber Strap & Buckle – 20mm – Seamaster Professional - SMP 300M (42mm) $225 shipped

Omega OEM Seaweed Green Rubber Strap & Buckle – 20mm – Seamaster Professional - SMP 300M (42mm) $225 shipped

Omega · $225
Authentic Omega OEM Seaweed Green rubber strap for the Seamaster Professional 300M, designed for a 42mm case.

  • Condition: Authentic
  • Color: Seaweed Green
  • Width: 20mm
  • Fitment: Seamaster Professional 300M – 42mm case
Posted at
May 8, 2026, 7:57 PM
Active
[WTS] OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,000🔥 [PRICED TO SELL]

OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,000🔥 [PRICED TO SELL]

The OMEGA Seamaster Planet Ocean 600M is a robust and elegant dive watch that embodies OMEGA's commitment to ocean exploration and precision engineering, with a black dial, orange accents, and date window at 3 o'clock. It's built for adventure, water-resistant up to 600 meters (2000 feet), and features a helium escape valve.

  • Condition: VERY GOOD with few superficial scratches on case
  • Movement: Co-Axial Caliber 8500
  • Water resistance: 600m (2000ft)
  • Depth rating: 600m depth rating
Posted at
May 8, 2026, 7:32 PM
Active
[WTS] OMEGA Seamaster Bullhead Co-Axial Chronograph Ref. 225.12.43.50.01.001 - ULTIMATE SET! 🔥$7,250🔥 [PRICED TO SELL]

OMEGA Seamaster Bullhead Co-Axial Chronograph Ref. 225.12.43.50.01.001 - ULTIMATE SET! 🔥$7,250🔥 [PRICED TO SELL]

The OMEGA Seamaster Bullhead Ref. 225.12.43.50.01.001 is a cult classic reborn, paying tribute to the iconic 1969 original. Its distinctive shield-shaped case and unique configuration—with the crown and chronograph pushers at 12 o'clock—earn it the "Bullhead" nickname.

  • Condition: UNWORN
  • Case Size: 43mm
  • Movement: Co-Axial Calibre 3113 automatic
Posted at
May 8, 2026, 7:30 PM
Active
[WTS] OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET! 🔥$7,750🔥 [PRICED TO SELL]

OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET! 🔥$7,750🔥 [PRICED TO SELL]

The OMEGA Seamaster Aqua Terra Worldtimer Ref. 220.10.43.22.03.002 is a sophisticated travel companion that puts the world on your wrist.

  • Condition: VERY GOOD, Some light scratches on case and bracelet.
  • Case size: 43mm
  • Bracelet size: ~7"
  • Movement: Master Chronometer Calibre 8938
Posted at
May 8, 2026, 7:27 PM
Active
[WTS] OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$4,750🔥 [PRICED TO SELL]

OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$4,750🔥 [PRICED TO SELL]

The OMEGA Seamaster Aqua Terra Ref. 220.10.38.20.13.003 is a 38mm stainless steel model featuring a symmetrical case design, a Terracotta dial with a dynamic play of light, and rhodium-plated hands for readability.

  • Condition: UNWORN
  • Case size: 38mm diameter
  • Bracelet size: ~7" wrist
  • Contents: box,papers,serial hang tag,spare links (for fully-linked bracelet),shipping coffin,digital copy of original purchase receipt
Posted at
May 8, 2026, 7:25 PM
Active
[WTS] OMEGA Seamaster Diver 300M "Paris 2024" Ref. 522.21.42.20.04.001 + Five Stripes "Paris 2024" NATO Strap - ULTIMATE SET! 🔥$6,250🔥 PRICED TO SELL!

OMEGA Seamaster Diver 300M "Paris 2024" Ref. 522.21.42.20.04.001 + Five Stripes "Paris 2024" NATO Strap - ULTIMATE SET! 🔥$6,250🔥 PRICED TO SELL!

The Seamaster Diver 300M 'Paris 2024' is a luxurious tribute to sporting excellence, featuring a 42mm case combining stainless steel and 18K Moonshine Gold.

  • Condition: UNWORN
  • Case size: 42mm
  • Movement: Calibre 8800 Master Chronometer
  • Bezel: laser-structured diving scale in positive relief
Posted at
May 8, 2026, 7:22 PM
Active
[WTS] 2023 Omega Seamaster Diver 300M Grey 12/23 Ref# 210.30.42.20.06.001 $4,299.00

2023 Omega Seamaster Diver 300M Grey 12/23 Ref# 210.30.42.20.06.001 $4,299.00

A 2023 Omega Seamaster Diver 300M Grey with a 42mm size and domed sapphire crystal, featuring an automatic movement and 300M water resistance.

  • Condition: Excellent shape, minor hairlines on case-clasp and bracelet
  • Movement: 8806
  • Water resistance: 300m
  • Reserve: 55 hours
Posted at
May 8, 2026, 6:37 PM
Active
[WTS] Omega Seamaster Diver 300M Blue Ceramic Gray Dial – Full Set w/ Bonus Strap

Omega Seamaster Diver 300M Blue Ceramic Gray Dial – Full Set w/ Bonus Strap

The Omega Seamaster Diver 300M features a Blue ceramic bezel and gray wave dial, powered by the Calibre 8800 Co-Axial Master Chronometer with METAS certification and 55hr power reserve.

  • Condition: Very Good
  • Case material: stainless steel
  • Diameter: 42mm
  • Water resistance: 300m
Posted at
May 8, 2026, 4:45 PM
Active
[WTS] Omega Seamaster 21mm Blue Rubber Strap & Stainless Steel Tang Buckle MINT

Omega Seamaster 21mm Blue Rubber Strap & Stainless Steel Tang Buckle MINT

Omega - CVZ010127 · $225
A genuine OEM Omega blue rubber strap (Ref. CVZ010127) complete with the matching Omega tang buckle, designed for 21mm Omega watches.

  • Condition: Like New
  • Strap Width: 21mm
  • Buckle Type: Stainless Steel Tang Buckle
Posted at
May 8, 2026, 3:51 PM
Active