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 GMT Diver 2535.80.00

OMEGA Seamaster GMT Diver 2535.80.00

OMEGA - 2535.80.00 · $3,700
This listing is for a pre-owned OMEGA Seamaster GMT Diver in 41mm size that comes with a clean crystal and is suitable for wrists between 6.5-6.75 inches.

  • Condition: preowned, minor hairline scratches, clean crystal with possible marks under magnification
  • Size: 41mm diameter
  • Wrist size range: 6.5-6.75 inches
  • Shipping: free 2-day insured FedEx shipping
Posted at
Dec 7, 2025, 1:03 AM
Active
[WTS] (2021) Mint Omega Seamaster Railmaster 40mm Grey Dial 220.10.40.20.06.001 $2,600

(2021) Mint Omega Seamaster Railmaster 40mm Grey Dial 220.10.40.20.06.001 $2,600

This Omega Seamaster Railmaster is a 2021 model with a grey dial and 40mm case size, offered for sale in full set condition including box and papers.

  • Condition: lightly used with very little signs of use
  • Case size: 40mm diameter
  • Year: 2021
  • Condition notes: very little signs of use
Posted at
Dec 6, 2025, 11:54 PM
Active
[WTS] REDUCED PRICE REPOST Omega Seamaster Aqua Terra 36mm 2504.50 Black Dial Full Set W/ Box & Papers

REDUCED PRICE REPOST Omega Seamaster Aqua Terra 36mm 2504.50 Black Dial Full Set W/ Box & Papers

Omega - 2504.50 · $3,150
Up for sale is my Omega Seamaster Aqua Terra 36mm, a full set watch with inner/outer boxes and authentication cards.

  • Condition: very good overall condition with minor hairlines on the bracelet and case
  • Case size: 36mm
  • Box papers included: yes
Posted at
Dec 6, 2025, 8:12 PM
Active
[WTS] Omega Seamaster 300M - Ref # 212.30.41.20.03.001, 2018, Box and Papers

Omega Seamaster 300M - Ref # 212.30.41.20.03.001, 2018, Box and Papers

This Omega Seamaster Professional Diver 300M is a sleek 2018 model featuring a 41mm stainless steel case, blue dial, and automatic 2500 Co-Axial movement.

  • Condition: Very good
  • Case size: 41mm diameter
  • Material: stainless steel
  • Bezel type: blue ceramic uni-directional
Posted at
Dec 6, 2025, 6:01 PM
Active
[WTS] Omega Seamaster Aqua Terra - Silver Wave - 2024

Omega Seamaster Aqua Terra - Silver Wave - 2024

Omega - 23110422102006 · $4,350
Aqua Terra 'wave dial' watch features a 41.5mm stainless steel case, silver wave-patterned dial with rhodium-plated hands and indexes, and is powered by the Omega Master Co-Axial Calibre 8500.

  • Case size: 41.5mm
  • Bracelet material: stainless steel
  • Movement type: Omega Master Co-Axial Calibre 8500
Posted at
Dec 6, 2025, 4:52 PM
Active
[WTS] Omega Seamaster Aquaterra. 41mm. Coaxial.

Omega Seamaster Aquaterra. 41mm. Coaxial.

The Omega Seamaster Aquaterra is a 41mm coaxial movement watch with additional details not specified.

  • Size: 41mm diameter
  • Shipping: shipped via Fedex with insurance
Posted at
Dec 6, 2025, 4:25 PM
Active
[WTS] Omega Seamaster Aqua Terra Gold Bezel White “Teak” Dial - 231.23.39.21.02.002 Papers and Travel Box - Excellent Condition

Omega Seamaster Aqua Terra Gold Bezel White “Teak” Dial - 231.23.39.21.02.002 Papers and Travel Box - Excellent Condition

The Omega Seamaster Aqua Terra features a vertical 'Teak-Concept' dial, inspired by luxury sailboats, paired with an 18K yellow gold bezel, giving it a warm and refined look.

  • Condition: Excellent Condition
  • Case size: 38.5mm
  • Water resistance: 150M
  • Movement type: Master Co-Axial Chronometer
Posted at
Dec 6, 2025, 3:11 PM
Active
[WTS] Omega Seamaster Professional Diver 300M White dial Black rubber strap & Alligator strap Box & Papers

Omega Seamaster Professional Diver 300M White dial Black rubber strap & Alligator strap Box & Papers

This is a 2022 Omega Seamaster Professional Diver 300M Co-Axial with a white dial, black rubber strap, and an extra alligator strap. It features various advanced watchmaking technologies, including a Helium escape valve and master chronometer certification.

  • Condition: Excellent
  • Case size: 42mm
  • Bezel type: unidirectional rotating bezel
  • Depth rating: 300m
Posted at
Dec 6, 2025, 3:04 PM
Active
[WTS][WTT] Omega Seamaster Planet Ocean 600M - Skyfall Limited Edition - w/ Omega Service *Price Drop*

[WTT] Omega Seamaster Planet Ocean 600M - Skyfall Limited Edition - w/ Omega Service *Price Drop*

A discontinued Limited Edition Skyfall Omega Seamaster Planet Ocean 600M with a black patterned dial and in-house caliber 8507b movement, water resistant up to 600 meters.

  • Condition: Pre-owned, recently serviced by Omega
  • Case size: 42mm
  • Water resistance: 600m (~2000ft)
  • Movement: Caliber 8507b with silicon balance spring
Posted at
Dec 6, 2025, 1:47 PM
Active