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.

Buy Now on Jomashop

This is an affiliate link

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

Current Listings

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange