Omega Railmaster Seamaster Aqua Terra 150M Co-Axial 39.2 Railmaster / Brown Alligator

Reference 2803.52.37

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 39.2 Railmaster is a masterclass in blending modernity with tradition, featuring an elegant stainless-steel case and black dial adorned with mixed indexes and arrow hands. This automatic movement boasts a power reserve of 48 hours, frequency of 25,200 vibrations per hour, and Co-Axial escapement that reduces friction for enhanced longevity. With its sapphire glass, robust construction, and water resistance of 150 meters, this watch is as functional as it is stylish. Whether you're swimming, snorkeling, or just dressing up, the Omega Seamaster Aqua Terra 150M Railmaster is an exceptional timepiece that exudes sophistication and adventure spirit. As a chronometer, it has undergone rigorous testing to ensure accuracy and reliability, making it a worthy investment for any watch enthusiast. With its timeless design, exceptional craftsmanship, and versatility in various settings, this watch stands out from the crowd. Experience the Omega difference with this remarkable timepiece.
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MSRP: $2,850
Market Price: $2,711

Key Features

  • Omega caliber 2403 automatic movement
  • Sapphire glass for enhanced durability
  • Water resistance of 150 meters
  • Co-Axial escapement for improved accuracy and longevity
  • Chronometer certified for precision and reliability
  • Stainless-steel case with elegant design
  • Black dial with mixed indexes and arrow hands

Specifications

Brand
Omega
Family
Railmaster
Model
Seamaster Aqua Terra 150M Co-Axial 39.2 Railmaster / Brown Alligator
Reference
2803.52.37
Movement
2403
Movement Features
  • Hours, Minutes, Seconds
  • Co-Axial Escapement, Chronometer
Case
Stainless Steel 39.2mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
150

Current Listings

[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] Omega Railmaster 36mm 2804.52.37 | Original Box & Papers (serviced)

Omega Railmaster 36mm 2804.52.37 | Original Box & Papers (serviced)

Omega - 2804.52.37 · $5,301
Up for sale is the iconic Omega Railmaster (36mm) 2804.52.37, featuring a no nonsense 3-6-9 dial and practical design compared to the Rolex Explorer.

  • Condition: Serviced, with original box and papers
  • Diameter: 36mm
Posted at
Dec 4, 2025, 9:30 AM
Active
[WTS] Omega Railmaster Black Dial on Delugs CTS Rubber

Omega Railmaster Black Dial on Delugs CTS Rubber

Omega - 22010402001001 · $2,699
The Omega Railmaster is a robust and rugged engineer's watch, available in this 40mm Black Dial version. It features a co-axial master chronometer movement and comes with the full kit minus warranty.

  • Condition: very good, with minor wear (8/10)
  • Strap included: Delugs CTS black rubber strap with deployment ($145 value)
  • Lug wear: minor
  • Back of lugs condition: mostly worn
Posted at
Dec 3, 2025, 6:46 PM
Active
Omega Railmaster  - 220.10.40.20.03.001 - Blue - Steel - 40mm - Mint

Omega Railmaster - 220.10.40.20.03.001 - Blue - Steel - 40mm - Mint

This Omega Railmaster is a pre-owned, mint condition watch with a blue dial and stainless steel case. It has a 40mm diameter and features an automatic movement.

  • Condition: Pre-Owned - Mint
  • Case Size: 40mm diameter
  • Bracelet Type: Stainless Steel
  • Movement Type: Automatic
Posted at
Mar 10, 2025, 12:58 AM
Active
NO TRADES:  Omega '57 Trilogy Railmaster.      $5030

NO TRADES: Omega '57 Trilogy Railmaster. $5030

A brand new Omega '57 Trilogy Railmaster purchased in September 2024.

  • Condition: Light scratches
  • Bracelet condition: light scratches on bracelet and clasp
  • Warranty: USA only
Posted at
Mar 7, 2025, 1:00 PM
Active