Omega Railmaster Seamaster Aqua Terra 150M Co-Axial 36.2 Railmaster / Brown Alligator

Reference 2804.52.37

Omega Seamaster Aqua Terra 150M Co-Axial 36.2 Railmaster / Brown Alligator

About this watch

The Omega Railmaster 2804.52.37 is a luxury timepiece that embodies the spirit of adventure while remaining rooted in tradition. With its stainless steel case and sapphire crystal, this watch exudes elegance and sportiness, merging the best of both worlds. The black dial with mixed indexes and arrow hands adds a touch of sophistication, making it versatile for both casual outings and formal events. At the heart of this timepiece lies the Omega caliber 2403, an automatic movement that operates on a frequency of 25,200 vibrations per hour and boasts a power reserve of 48 hours. The Co-Axial escapement is a game-changer, enhancing precision while reducing friction, which means less maintenance over time. With its water resistance of 150 meters, it's ready for a dip in the pool or a day out on the boat. This watch is not just about telling time; it's an experience that combines functionality with style.
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Key Features

  • Stainless steel case
  • Sapphire crystal
  • Automatic movement (Omega caliber 2403)
  • Co-Axial escapement
  • Water resistance of 150 meters
  • Chronometer certification
  • Brown alligator strap

Specifications

Brand
Omega
Family
Railmaster
Model
Seamaster Aqua Terra 150M Co-Axial 36.2 Railmaster / Brown Alligator
Reference
2804.52.37
Movement
2403
Movement Features
  • Hours, Minutes, Seconds
  • Co-Axial Escapement, Chronometer
Case
Stainless Steel 36.2mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Railmaster 36mm 2804.52.37 | Original Omega certificates (serviced)

Omega Railmaster 36mm 2804.52.37 | Original Omega certificates (serviced)

Omega - 2804.52.37 · $5,301
The Omega Railmaster is an iconic watch with a no nonsense 3-6-9 dial, making it practical and modest compared to the Rolex Explorer. Its design has remained relatively unchanged since 1957.

  • Condition: serviced
  • Diameter: 36mm
  • Certificates: original
  • Shipping Us: 52
Posted at
Feb 12, 2026, 9:08 AM
Active
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[WTS] Omega Seamaster Railmaster XXL 49.2mm Watch Only

Omega Seamaster Railmaster XXL 49.2mm Watch Only

Omega - 2806.52.37 · $3,500
Omega Seamaster Railmaster XXL watch, purchased from Watchesmiles just over a month ago.

  • Condition: great condition
  • Case Size: 49.2mm diameter
Posted at
Feb 13, 2026, 7:12 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Railmaster XXL 49.2mm

Omega Seamaster Railmaster XXL 49.2mm

Omega - Railmaster XXL
This listing does not contain a description of the watch.

  • Size: 49.2mm diameter
Posted at
Feb 13, 2026, 2:56 PM
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[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
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[WTS] [Price Reduced] Omega Railmaster Silver 220.10.40.20.06.001 2023 Full Set Like New under omega warranty till 2028 - $2999 + 🏷 🔥

[Price Reduced] Omega Railmaster Silver 220.10.40.20.06.001 2023 Full Set Like New under omega warranty till 2028 - $2999 + 🏷 🔥

Omega - 220.10.40.20.06.001 · $2,999
This is a discontinued Omega Railmaster model that's hard to find in this condition and still under warranty till 2028.

  • Condition: Like new
  • Warranty Expiration Date: 2028
  • Set Contents: Full set, half links, 3 Omega cards
Posted at
Feb 13, 2026, 12:39 PM
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[WTS] 2017 OMEGA Seamaster Railmaster 40MM Blue Dial Steel Bracelet

2017 OMEGA Seamaster Railmaster 40MM Blue Dial Steel Bracelet

OMEGA - Seamaster Railmaster 40MM Blue Dial Steel Bracelet · $3,200
A 2017 OMEGA Seamaster Railmaster with a blue dial, 40mm in size. The watch is in good condition despite some minor flaws.

  • Condition: Used, with minor cosmetic damage
  • Missing Items: International warranty card, inner box, outer box flap
Posted at
Feb 5, 2026, 8:19 PM
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[WTS] Omega Seamaster Railmaster Blue Dial 40mm (Ref. 220.12.40.20.03.001) – Like New – Full Kit

Omega Seamaster Railmaster Blue Dial 40mm (Ref. 220.12.40.20.03.001) – Like New – Full Kit

Omega - 220.12.40.20.03.001 · $3,800
For sale is an Omega Seamaster Railmaster featuring the blue brushed dial on the original Omega denim-style fabric strap, powered by Omega's Co-Axial Master Chronometer Caliber 8806.

  • Condition: Like New
  • Case diameter: 40mm
  • Water resistance: 150m
  • Power reserve: 55 hours
Posted at
Feb 1, 2026, 3:34 PM
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Omega Railmaster - 220.10.40.20.03.001 - Blue - Steel - 40mm - Mint

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

Omega - 220.10.40.20.03.001 · $3,795
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
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NO TRADES: Omega '57 Trilogy Railmaster. $5030

NO TRADES: Omega '57 Trilogy Railmaster. $5030

Omega - '57 Trilogy Railmaster · $5,030
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
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