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

2000s Omega Seamaster Aqua Terra Railmaster 36mm ref. 2504.52

Omega - 2504.52 · $5,700

A 2000s Omega Seamaster Aqua Terra Railmaster 36mm with a stainless steel case and black dial. The watch features an automatic movement, Super-LumiNova lume, and a sapphire crystal.

Condition: Normal wear in the form of a few hairlines, faint scratches, and tiny nicks throughout, some micro patina on hands
Case Material: Stainless steel
Diameter: 36 mm
Lug Width: 19 mm

Posted at

Nov 2, 2025, 4:51 PM

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Omega Railmaster

Omega - 220.10.40.20.01.001 · $3,100

This Omega Seamaster Railmaster is a recently discontinued model that includes full kit and undated warranty card, sold with original box.

Condition: Pre-owned with small mark near 1 o'clock on case
Case size: 40mm diameter

Posted at

Nov 1, 2025, 3:15 PM

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Omega Railmaster 2503.52 (39.2mm) Full Set -Reduced

Omega - 2503.52 · $3,050

This Omega Railmaster is a 39.2mm watch with Cal. 2403 movement and 44-hour power reserve.

Condition: great condition
Case Diameter: 39.2mm
Thickness: 11mm
Lug To Lug Length: 47mm

Posted at

Oct 31, 2025, 11:35 AM

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Omega Seamaster Railmaster 39mm 2503.52 $2,600 2403 Movement

Omega - 2503.52 · $2,600

This Omega Seamaster Railmaster is a 39mm model with the 2403 movement.

Movement: 2403

Posted at

Oct 31, 2025, 5:25 AM

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🔥OMEGA RAILMASTER 235.10.38.20.06.001 38MM 2025 COMPLETE🔥

Posted at

Oct 29, 2025, 9:14 PM

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Omega Railmaster

Posted at

Oct 29, 2025, 1:51 PM

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2025 Omega AT Railmaster Grey on Bracelet - Full Kit

Omega - 235.10.38.20.06.001 · $5,299

Up for sale is Omega's newest version of the Railmaster in grey, featuring an in-house automatic Co-Axial Master Chronometer Calibre 8806 with a 55-hr power reserve.

Condition: near-mint
Case Dimension: 38 mm diameter
Lug Width: 19 mm
Thickness: 12.4 mm

Posted at

Oct 26, 2025, 5:41 PM

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