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

Reference 2504.52.00

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 36.2 Railmaster is a sophisticated piece of horology that combines elegance, functionality, and cutting-edge technology. Its round stainless steel case strikes a balance between boldness and understated elegance, while the sleek black dial creates a striking contrast that makes the watch both sporty and sophisticated. At the heart of this timepiece is the Omega caliber 2403, a version of the renowned caliber 2500, featuring a Co-Axial escapement that reduces friction and enhances accuracy. With a power reserve of 48 hours and a frequency of 25,200 vibrations per hour, this automatic movement is designed to keep you on time. Whether you're diving into the deep blue sea or attending a formal event, this watch won't let you down. Its chronometer certification ensures that it meets stringent accuracy standards, making it a reliable companion in any situation. With a water resistance rating of 150 meters, the Seamaster Aqua Terra is built for aquatic adventures and features a comfortable fit with its 36.2 mm case size, making it a versatile choice for diverse wrist sizes.
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MSRP: $2,980
Market Price: $4,063

Key Features

  • Round stainless steel case
  • Omega caliber 2403 movement
  • Co-Axial escapement
  • Chronometer certification
  • Water resistance up to 150 meters
  • Comfortable fit with 36.2 mm case size
  • Sleek black dial with mixed indexes

Specifications

Brand
Omega
Family
Railmaster
Model
Seamaster Aqua Terra 150M Co-Axial 36.2 Railmaster / Bracelet
Reference
2504.52.00
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 Seamaster Railmaster 40 mm, steel on steel - 2,599 USD

Omega Seamaster Railmaster 40 mm, steel on steel - 2,599 USD

A 40mm steel Omega Seamaster Railmaster, with a METAS-certified movement and 15 Bar water resistance.

  • Condition: Mint – Worn Twice
  • Case Size: 40mm diameter
  • Lug To Lug: 47mm
  • Thickness: 12.7mm
Posted at
Oct 21, 2025, 3:34 AM
Active
[WTS] Omega Railmaster

Omega Railmaster

Recently discontinued Omega Seamaster Railmaster, includes full kit and undated warranty card.

  • Case Mark: small mark near 1 o'clock
  • Shipping Method: FedEx 2 Day
Posted at
Oct 18, 2025, 11:54 AM
Active
[WTS] Omega Railmaster 39mm - 2503.52

Omega Railmaster 39mm - 2503.52

Omega - 2503.52 · $2,995
The Omega Railmaster 39mm features a mechanical, self-winding movement (caliber 2403) with co-axial escapement and an exhibition case back.

  • Condition: really nice condition
  • Movement: caliber 2403
  • Bracelet size range: 7-7.25 inch
  • Case polish: light polish
Posted at
Oct 15, 2025, 9:21 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