Omega Seamaster Seamaster Master Co-Axial 39.5 Swiss Edition Stainless Steel / Silver / Alligator

Reference 511.13.40.20.06.002

About this watch

The Omega Seamaster Master Co-Axial 39.5 Swiss Edition is a masterpiece of luxury watchmaking, blending traditional craftsmanship with cutting-edge technology. This stunning timepiece boasts a gradient grey dial with stick and dot indexes, feuille hands, and a round shape that exudes elegance. The movement powering this watch is the impressive Omega caliber 8800, featuring a self-winding mechanism with a Co-Axial escapement for precision and longevity. Master Chronometer certification ensures accuracy and performance under various conditions, while the power reserve of 55 hours allows you to take it off for extended periods without worrying about winding. The comfortable alligator leather strap adds a luxurious touch, making this watch perfect for daily wear or special occasions. With its exceptional timekeeping precision, date function, and water resistance rating of 60 meters, the Seamaster Master Co-Axial is an investment piece that offers great value for those looking to expand their luxury watch collection. Its elegant design and advanced movement make it a standout piece in Omega's impressive lineup.
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Key Features

  • Gradient grey dial
  • Omega caliber 8800 self-winding movement with Co-Axial escapement
  • Master Chronometer certification for accuracy
  • 55-hour power reserve
  • Comfortable alligator leather strap
  • Water resistance rating of 60 meters
  • Date function

Specifications

Brand
Omega
Family
Seamaster
Model
Seamaster Master Co-Axial 39.5 Swiss Edition Stainless Steel / Silver / Alligator
Reference
511.13.40.20.06.002
Movement
8800
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 39.5mm
Dial Color
Grey
Crystal
Sapphire
Water Resistance
60

Current Listings

[WTS] 2019 Omega Seamaster Diver 41mm 212.30.41.20.03.001 Blue No Wave Full Set - $3,795

2019 Omega Seamaster Diver 41mm 212.30.41.20.03.001 Blue No Wave Full Set - $3,795

2019 Omega Seamaster Diver in 41mm, blue dial with no wave pattern.

  • Case size: 41mm
Posted at
May 21, 2026, 9:18 PM
Active
[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

Up for sale is a **Omega Seamaster Diver 300m Green Seaweed** in excellent condition, thoroughly tested and running well.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2024
  • Contents: watch, inner & outer box, card holder, international warranty card, pictograms card, master chronometer card, instructions manual
Posted at
May 21, 2026, 7:38 PM
Active
[WTS] 2024 Omega Seamaster Planet Ocean 600M 43.5mm Black 232.30.44.22.01.001 Full Set - $4,595

2024 Omega Seamaster Planet Ocean 600M 43.5mm Black 232.30.44.22.01.001 Full Set - $4,595

Up for sale is a Omega Seamaster Planet Ocean 600M 43.5mm Black, reference 232.30.44.22.01.001 from 2024.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2024
  • Case size: 43.5mm
  • Depth rating: 600m
Posted at
May 21, 2026, 7:37 PM
Active
[WTS] 2019 Omega Seamaster Planet Ocean 600M 43.5mm Black 215.30.44.21.01.001 Full Set - $4,595

2019 Omega Seamaster Planet Ocean 600M 43.5mm Black 215.30.44.21.01.001 Full Set - $4,595

A black Omega Seamaster Planet Ocean 600M in excellent condition, available for sale.

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 43.5mm
  • Depth rating: 600m
Posted at
May 21, 2026, 7:35 PM
Active
[WTS] 2025 Omega Seamaster Aqua Terra Green 220.10.41.21.10.001 41mm Full Set - $4,995

2025 Omega Seamaster Aqua Terra Green 220.10.41.21.10.001 41mm Full Set - $4,995

This is a 2025 Omega Seamaster Aqua Terra Green, featuring a 41mm case size.

  • Condition: Excellent condition with minimal signs of wear
  • Case Size: 41mm diameter
  • Year: 2025
Posted at
May 21, 2026, 7:32 PM
Active
[WTS] Omega Seamaster Aqua Terra Co-Axial - 41mm Turquoise Blue - 2025 Full Set - 220.10.41.21.03.006 - $5,650

Omega Seamaster Aqua Terra Co-Axial - 41mm Turquoise Blue - 2025 Full Set - 220.10.41.21.03.006 - $5,650

This stunning Omega Seamaster Aqua Terra features a Turquoise Blue dial and is the 41mm version, sitting nicely on the wrist.

  • Condition: Mint condition
  • Size: 41mm diameter
  • Warranty Until: 2029
Posted at
May 21, 2026, 6:32 PM
Active
[WTS] 36mm Omega Seamaster Aqua Terra Automatic Co-Axial 2504.30 - $2500 SHIPPED

36mm Omega Seamaster Aqua Terra Automatic Co-Axial 2504.30 - $2500 SHIPPED

Omega - 2504.30 · $2,500
This is a 36mm Omega Seamaster Aqua Terra featuring an automatic co-axial movement, striking silver sunburst dial, and applied indexes.

  • Condition: Good overall condition with normal wear on case and bracelet
  • Movement: automatic co-axial 2500
  • Bracelet size compatibility: up to 7.25" wrist
  • Case diameter: 36mm
Posted at
May 21, 2026, 6:07 PM
Active
[WTS] Omega Seamaster 300m Full set, w/ Bracelet and Rubber. CHEAP!

Omega Seamaster 300m Full set, w/ Bracelet and Rubber. CHEAP!

Omega - Seamaster 300m · $3,950
This Omega Seamaster 300m is a well-loved watch with excellent timekeeping, still under warranty for about 6 months. It comes with the full set, including box, cards, links, and an additional rubber strap.

  • Condition: Pre-owned with scratches on bracelet and case
  • Warranty Left: 6 months
  • Shipping Options: Fedex Hold at Location, meet in person, or video chat for payment
  • Payment Methods: Cash, Paypal G&S(+4.5%), Zelle(preferred), Bitcoin(+2.5%), USDT
Posted at
May 21, 2026, 5:00 PM
Active
[WTS] Omega Seamaster 300 SMP $3,995

Omega Seamaster 300 SMP $3,995

Omega - Seamaster 300 SMP · $3,995
Up for grabs is a Grey dial Omega Seamaster from Year: 2022 with a Size: 42mm diameter. Includes various accessories such as a Wooden omega box, card sleeve, all cards, omega book, zuludiver strap, forstner bracelet with the micro adjust, end links and pins.

  • Condition: Worn but in really good and well taken care of
  • Year: 2022
  • Size: 42mm diameter
  • Box: Wooden omega box
Posted at
May 21, 2026, 4:12 PM
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