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

Reference 511.13.40.20.06.002

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

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.
Buy Now on Jomashop
This is an affiliate link

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] 2023 OMEGA Seamaster 300 234.30.41.21.03.002 Summer Blue Full Set

2023 OMEGA Seamaster 300 234.30.41.21.03.002 Summer Blue Full Set

OMEGA - 234.30.41.21.03.002 · $5,299
This 2023 Omega Seamaster 300 Summer Blue has been inspected mechanically and comes as a full set, including outer and inner boxes, travel pouch, warranty card, pictograms card, and master chronometer card.

  • Condition: Pre-owned, some wear marks
  • Year Purchased: 2023
  • Shipping Method: FedEx overnight
Posted at
Jan 17, 2026, 3:51 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Diver 300m 44mm 210.60.44.51.03.001 Blue Dial Titanium 18k Rose Gold MINT CONDITION

Omega Seamaster Diver 300m 44mm 210.60.44.51.03.001 Blue Dial Titanium 18k Rose Gold MINT CONDITION

Omega - 210.60.44.51.03.001 · $14,250
The Omega Seamaster Diver 300m Chronograph features a laser-ablated 18k rose gold bezel paired with a high polish blue ceramic dial and chronograph complications. It has 300 meters of water resistance and is powered by Omegas Co-Axial Master Chronometer Calibre 9900.

  • Condition: Amazing Pre-Owned condition, showing no sings of wear, clean crystal and case.
  • Case size: 44mm
  • Movement type: Automatic (Self Winding)
  • Power reserve: 72hrs
Posted at
Jan 17, 2026, 3:03 PM
Active
View listing on r/WatchExchange
[WTS] OMEGA Seamaster Professional 300m 41mm 2531.80 - Factory OMEGA Overhaul Completed Late 2025 - Almost Everything Replaced - Complete Kit + Red Service Box - 2 Year Omega Warranty - Everything on this is crisp 🧼🌊

OMEGA Seamaster Professional 300m 41mm 2531.80 - Factory OMEGA Overhaul Completed Late 2025 - Almost Everything Replaced - Complete Kit + Red Service Box - 2 Year Omega Warranty - Everything on this is crisp 🧼🌊

OMEGA - 2531.80 · $3,850
This is a classic SMP Bond 41mm Chronometer watch with a slim case, robust build, and wave dial.

  • Condition: Fully serviced, overhauled in November 2025, almost everything replaced
  • Case size: 41mm
  • Water resistance: 300m
  • Warranty: 2 year Omega warranty starting in November 2025
Posted at
Jan 17, 2026, 2:45 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Aqua Terra 150M 38.5mm Blue “Teak” Dial - James Bond Spectre| Ref.231.10.39.21.03.002 | Full Set | Mint Condition

Omega Seamaster Aqua Terra 150M 38.5mm Blue “Teak” Dial - James Bond Spectre| Ref.231.10.39.21.03.002 | Full Set | Mint Condition

Omega - 231.10.39.21.03.002 · $4,390
The Omega Seamaster Aqua Terra 150M reference 231.10.39.21.03.002 is a sporty and refined watch that sits ideally between versatility and wrist presence, measuring 38.5 mm in size.

  • Condition: Mint Condition
  • Case size: 38.5mm
  • Depth rating: 150m
  • Movement: Omega Co-Axial calibre 8500 with 60-hour power reserve
Posted at
Jan 17, 2026, 12:36 PM
Active
View listing on r/WatchExchange
[WTS] 2022 Omega Seamaster Aqua Terra Golf 42mm 220.10.41.21.02.001 Full set

2022 Omega Seamaster Aqua Terra Golf 42mm 220.10.41.21.02.001 Full set

Omega - 220.10.41.21.02.001
2022 Omega Seamaster Aqua Terra Golf 42mm, a high-end watch designed for golfers.

  • Size: 42mm
Posted at
Jan 17, 2026, 11:59 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Professional 300M

Omega Seamaster Professional 300M

Omega - Seamaster Professional 300M · $3,750
This Omega Seamaster Diver 300M features a blue ceramic wave dial and ceramic bezel, powered by the Cal. 8800 Co-Axial Master Chronometer.

  • Condition: excellent with minimal signs of wear
  • Diameter: 40mm
  • Case material: unknown
Posted at
Jan 17, 2026, 12:05 AM
Active
View listing on r/WatchExchange
[WTS] OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,500🔥

OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,500🔥

OMEGA - 215.30.46.21.03.002 · $12,500
The OMEGA Seamaster Planet Ocean 6000M Ultra Deep Ref. 215.30.46.21.03.002 is a commercially available version of the watch originally developed for the Five Deeps Expedition, featuring water-resistance to an astounding 6,000 meters and powered by the Co-Axial Master Chronometer Calibre 8912.

  • Condition: UNWORN
  • Water resistance: 6000m depth rating
  • Case size: 45.5mm diameter
  • Material: O-MEGASTEEL
Posted at
Jan 16, 2026, 8:15 PM
Active
View listing on r/WatchExchange
[WTS] OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,250🔥

OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,250🔥

OMEGA - 232.32.42.21.01.003 · $4,250
The OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 is a robust and elegant dive watch that embodies OMEGA's commitment to ocean exploration and precision engineering.

  • Condition: VERY GOOD, few superficial scratches on case
  • Case size: 42mm
  • Water resistance: 600 meters (2000 feet)
  • Movement: Co-Axial Caliber 8500
Posted at
Jan 16, 2026, 8:06 PM
Active
View listing on r/WatchExchange
[WTS] OMEGA Seamaster Bullhead Co-Axial Chronograph Ref. 225.12.43.50.01.001 - ULTIMATE SET! 🔥$11,000🔥

OMEGA Seamaster Bullhead Co-Axial Chronograph Ref. 225.12.43.50.01.001 - ULTIMATE SET! 🔥$11,000🔥

OMEGA - 225.12.43.50.01.001 · $11,000
  • Condition: UNWORN
  • Case size: 43mm
  • Movement: Co-Axial Calibre 3113 automatic movement
Posted at
Jan 16, 2026, 7:48 PM
Active
View listing on r/WatchExchange