Omega Railmaster Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster / Bracelet

Reference 2502.52.00

Omega Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster / Bracelet

About this watch

The Omega Railmaster 2502.52.00 is a luxury watch that beautifully marries functionality with style. This stunning timepiece features the Omega Caliber 2403 movement, which boasts Co-Axial escapement technology for enhanced accuracy and reduced friction between moving parts. The case is crafted from stainless steel, giving it a robust yet refined appearance, while the black dial features a classic, clean design with mixed indexes that create a sense of depth and sophistication. With a water resistance of up to 150 meters, this watch can handle any situation, whether you're swimming or caught in the rain. The sapphire glass enhances durability while providing a crystal-clear view of the dial. This watch is perfect for any occasion, from formal events to casual outings, thanks to its versatility and reliable performance.

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MSRP: $3,250

Market Price: $2,774

Key Features

Omega Caliber 2403 movement
Co-Axial escapement technology
Stainless steel case
Black dial with mixed indexes
150m water resistance
Sapphire glass

Specifications

Brand

Omega

Family

Railmaster

Model

Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster / Bracelet

Reference

2502.52.00

Movement

2403

Movement Features

Hours, Minutes, Seconds
Co-Axial Escapement, Chronometer

Case

Stainless Steel 42.2mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

150

Current Listings

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

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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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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

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[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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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

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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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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 - 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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