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

Reference 2504.52.00

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

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

Omega Seamaster Aqua Terra Railmaster 2504.52 — $6800— Catch & Release, Serviced by Omega, Full Set

Omega - 2504.52 · $6,800

This Omega Seamaster Aqua Terra Railmaster is a 36mm stainless steel watch featuring a black dial, automatic movement, and an Omega 1575 stainless steel bracelet.

Condition: Excellent, minimal wear
Case material: Stainless steel
Diameter: 36mm
Lug width: 19mm

Posted at

Apr 22, 2026, 12:40 AM

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Omega Railmaster 40mm – Full Kit + Forstner Oyster Bracelet – $3,600 OBO

Omega - 220.10.40.20.01.001 · $3,600

The Omega Railmaster 40mm features the METAS-certified Master Chronometer caliber 8806 and anti-magnetic resistance up to 15,000 gauss. It is a modern tool watch that is often underrated.

Condition: very good condition, with only light signs of wear from normal rotation
Bracelet1: Original Omega stainless
Bracelet2: Forstner Oyster (excellent upgrade)
Water Resistance: 150m

Posted at

Apr 28, 2026, 10:34 AM

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Omega Seamaster Railmaster, Grey/Silver, 40mm (full set- box and papers)

Omega - Railmaster · $3,200

A sleek and sporty GADA watch that has a lot to offer under the hood. It's a stealth ultimate tool watch that cleans up nicely.

Condition: excellent, pre-owned with minor signs of wear
Case size: 40mm
Serial number available: true

Posted at

Apr 21, 2026, 12:25 AM

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Omega Seamaster Railmaster Grey Dial

Omega - 235.10.38.20.06.001 · $4,499

This Omega Railmaster has a 38mm steel case on a steel bracelet with a gray gradient dial, and includes a full set of accessories.

Condition: Excellent pre-owned condition
Case size: 38mm diameter
Bracelet material: steel
Dial color: gray gradient

Posted at

Apr 19, 2026, 4:38 PM

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Omega Railmaster 39mm 2503.52 for $2580 shipped!

Omega - 2503.52 · $2,580

The Omega Seamaster Railmaster 39mm delivers a simple design with its 3-6-9-12 markers and arrow indices, making it the ultimate everyday watch.

Condition: Satisfactory
Case Size: 39mm
Lug To Lug: 47mm
Movement Type: No Date Co-Axial Automatic

Posted at

Apr 19, 2026, 11:02 AM

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Omega Railmaster Denim Dial on Bracelet - Omega Travel Box & Extra Strap Included - $2475

Omega - Railmaster Denim Dial · $2,475

A versatile Omega Railmaster Denim Dial on a bracelet with 150M water resistance and a 40mm case size that wears well. The watch is in good condition with minor signs of wear.

Condition: Used, minimal wear
Case diameter: 40mm
Water resistance: 150m
Bracelet size: 7-7.25 inch

Posted at

Apr 19, 2026, 8:55 AM

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2022 OMEGA Seamaster Railmaster 40mm - 220.10.40.20.01.001 - Full Set

Omega - 220.10.40.20.01.001 · $3,100

A classic design by Omega, the Seamaster Railmaster 40mm features a vertical 'satination' pattern crosshair dial with fantastic lume, and comes as a full set from 2022.

Condition: Excellent pre-owned condition with minor visible wear throughout
Case Size: 40mm diameter
Movement: Omega 8806

Posted at

Apr 14, 2026, 8:32 PM

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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

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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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