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

Reference 2803.52.31

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 39.2 Railmaster is a statement piece that embodies the spirit of adventure while keeping sophistication at the forefront. Its stunning aesthetics, remarkable movement, and practical features make it stand out in a crowded marketplace. With its sleek design and robust features, it's perfect for both casual outings and formal occasions. The Omega Caliber 2403 automatic movement offers a power reserve of up to 48 hours and is certified chronometer, ensuring excellent timekeeping precision. This watch is not just a pretty face - it's also incredibly functional with a water resistance of 150 meters, making it suitable for both aquatic adventures and formal dinners.
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MSRP: $2,850
Market Price: $2,711

Key Features

  • Automatic Omega Caliber 2403 movement
  • Chronometer certification
  • Sapphire glass for scratch-resistance
  • Water resistance up to 150 meters
  • Black alligator leather strap for luxury feel
  • Mixed indexes and arrow hands for precise timekeeping

Specifications

Brand
Omega
Family
Railmaster
Model
Seamaster Aqua Terra 150M Co-Axial 39.2 Railmaster / Black Alligator
Reference
2803.52.31
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] Tudor Ranger 39 & Omega Railmaster; Gorgeous Field Watch Duo

Tudor Ranger 39 & Omega Railmaster; Gorgeous Field Watch Duo

Tudor - Ranger 39 · $2,450
A Tudor Ranger 39 and an Omega Railmaster field watch duo are being sold. The Tudor is in excellent condition, while the Omega has minor hairlines but a perfect crystal.

  • Condition: Excellent
  • Bracelet size range: 7.75"
  • Band type 1: OEM bracelet
  • Band type 2: Staib mesh bracelet
Posted at
Apr 6, 2026, 10:46 PM
Active
[WTS] Omega Railmaster 39mm 2503.52 for $2680 shipped!

Omega Railmaster 39mm 2503.52 for $2680 shipped!

Omega - 2503.52 · $2,680
The Omega Seamaster Railmaster 39mm 2503.52 is a simple design watch with a no-date co-axial movement, suitable for everyday wear.

  • Condition: Satisfactory, with signs of long-term usage
  • Movement: Omega Calibre 2403 No Date Co-Axial Automatic
  • Case dimensions: 39mm wide, 47mm lug to lug
  • Chips/scratches: case is chipped on the left side, light scratches and surface marks throughout case and bracelet, scratches on bezel and crystal
Posted at
Apr 4, 2026, 10:46 AM
Active
[WTS] Omega Railmaster 39mm – Full Set – $2,650

Omega Railmaster 39mm – Full Set – $2,650

Omega - Railmaster 39mm · $2,650
A great everyday Omega Railmaster 39mm in excellent condition, perfect for casual wear due to its clean and understated design.

  • Condition: Overall very good with minor lugs finish issue
  • Lug finish: brushed
  • Issue description: slight bleeding from previous polish
Posted at
Mar 30, 2026, 1:43 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