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] Omega Seamaster Railmaster XXL 49.2mm

Omega Seamaster Railmaster XXL 49.2mm

This listing does not contain a description of the watch.

  • Size: 49.2mm diameter
Posted at
Feb 13, 2026, 2:56 PM
Active
[WTS] Omega Seamaster Railmaster XXL 49.2mm

Omega Seamaster Railmaster XXL 49.2mm

Omega - Railmaster XXL · $3,500
A large Omega Seamaster Railmaster model with a unique design, sold as is without original packaging or documentation.

Posted at
Feb 13, 2026, 2:55 PM
Active
[WTS] 2018 Omega Seamaster Diver 300m Blue Dial Steel No Wave 212.30.41.20.03.001 B+P

2018 Omega Seamaster Diver 300m Blue Dial Steel No Wave 212.30.41.20.03.001 B+P

The Omega Seamaster Diver 300M features a classic blue dial, stainless steel case and bracelet, and an automatic self-winding movement.

  • Condition: Great condition, 93%
  • Case diameter: 41mm
  • Movement: Coaxial 2500 automatic self-winding
  • Crystal: Sapphire
Posted at
Feb 13, 2026, 2:20 PM
Active
[WTS] 2023 Omega Seamaster Diver 300m White Dial on Bracelet 210.30.42.20.04.001 B+P

2023 Omega Seamaster Diver 300m White Dial on Bracelet 210.30.42.20.04.001 B+P

This Omega Seamaster Diver 300M features a stunning white wave-pattern dial paired with a black ceramic bezel and is equipped with the Co-Axial Master Chronometer Caliber 8800 movement.

  • Condition: Excellent
  • Movement: Self-winding Mechanical
  • Case material: Stainless Steel
  • Bezel material: Black Ceramic
Posted at
Feb 13, 2026, 2:05 PM
Active
[WTS] 2024 Omega Seamaster Diver 300m Green Dial on Bracelet 210.30.42.20.10.001 B+P

2024 Omega Seamaster Diver 300m Green Dial on Bracelet 210.30.42.20.10.001 B+P

This stunning Omega Seamaster Diver 300M reference number 210.30.42.20.10.001 features a green wave-pattern dial, green ceramic bezel, and Co-Axial Master Chronometer Caliber 8800 movement.

  • Condition: Excellent (with minor signs of wear)
  • Case Diameter: 42mm
  • Crystal Type: Sapphire
  • Bezel Material: Green Ceramic
Posted at
Feb 13, 2026, 1:38 PM
Active
[WTS] Omega Seamaster Planet Ocean 42mm 2201.50.00 – Full Set – 2011 – $3,850

Omega Seamaster Planet Ocean 42mm 2201.50.00 – Full Set – 2011 – $3,850

Omega - 2201.50.00 · $3,850
For sale is my Omega Seamaster Planet Ocean 42mm, featuring a stainless steel case, black dial and bezel, Co-Axial automatic movement, and water resistance up to 2000ft.

  • Condition: Good overall condition
  • Case size: 42mm diameter
  • Water resistance: 600m / 2000ft
  • Movement type: Omega Co-Axial automatic
Posted at
Feb 13, 2026, 1:32 PM
Active
[WTS] Omega Seamaster Aqua Terra Quartz - White Dial - 231.10.39.61.02.001 - Price Reduced!

Omega Seamaster Aqua Terra Quartz - White Dial - 231.10.39.61.02.001 - Price Reduced!

This Omega Seamaster Aqua Terra Quartz features a white dial and is powered by a quartz movement, coming on its original stainless steel bracelet.

  • Condition: pre-owned with minor wear
  • Size: 38.5mm diameter
  • Movement: quartz
  • Bracelet material: stainless steel
Posted at
Feb 13, 2026, 12:58 PM
Active
[WTS] Omega Seamaster Professional Blue Dial - 212.30.36.20.03.001 - 36mm

Omega Seamaster Professional Blue Dial - 212.30.36.20.03.001 - 36mm

This Omega Seamaster Professional is a blue dial model with a size of 36mm.

  • Condition: Pre-owned with minor wear
  • Case size: 36mm diameter
Posted at
Feb 13, 2026, 12:55 PM
Active
[WTS] Omega Seamaster Professional 300M – 36mm - 2222.80 - Clean - $2,250 Shipped ✈️

Omega Seamaster Professional 300M – 36mm - 2222.80 - Clean - $2,250 Shipped ✈️

Omega - 2222.80 · $2,250
For sale is a Omega Seamaster Professional 300M midsize in 36.25mm automatic version with updated Omega Caliber 2500. It comes as watch only and fits up to a 6.5 wrist.

  • Condition: Clean, very light wear on the bracelet and clasp
  • Case Size: 36.25mm
  • Movement: Omega Caliber 2500
Posted at
Feb 13, 2026, 12:54 PM
Active