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 Railmaster 36 2504.52

Omega - 2504.52 · $6,000

A 36mm Omega Railmaster from 2007 in excellent condition with a few age-related imperfections.

Condition: Excellent with some minor cosmetic damage and potential servicing needed
Year of production: 2007
Case size: 36mm
Crown threads issue: Yes (may need servicing)

Posted at

May 27, 2026, 11:46 PM

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Omega Railmaster 2803.52.31 Full Set with Box & Papers, Freshly Serviced

Omega - 2803.52.31 · $2,925

This Omega Railmaster from the early 2000s features a classic 39.2mm design, dating back to 2006. The watch has been recently serviced and comes with a brand new grey leather strap.

Condition: Superb
Year: 2006
Case size: 39.2mm

Posted at

May 26, 2026, 6:42 PM

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Omega Railmaster 2502.52 41mm - $2,490

Omega - 2502.52 · $2,490

Up for sale is my great condition Omega Railmaster 2502.52, This watch measures at 41mm and has an automatic Omega 2403 movement.

Condition: Very good condition for its age
Case size: 41mm diameter
Movement: Automatic Omega 2403

Posted at

May 24, 2026, 10:01 PM

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Omega Railmaster. Clean. Full kit.

Omega - Railmaster · $2,795

The Omega Railmaster is a full kit with box and papers, available for sale from WatchExchange Enterprises in NJ USA.

Box papers: true

Posted at

May 23, 2026, 10:28 AM

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40mm Omega Seamaster Railmaster Black Dial - Ref 220.12.40.20.01.001 - FULL KIT (Box & Cards)

Omega - 220.12.40.20.01.001 · $2,500

The Omega Seamaster Railmaster features a black dial with vertical linear-brushed texture, recessed vintage-colored lume markers, and a signature 'lollipop' seconds hand. It has been an honest daily-wear tool watch.

Condition: Daily-wear tool watch with visible scuffs on the bezel and top-left lug
Movement: METAS-certified Calibre 8806

Posted at

May 22, 2026, 11:28 AM

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Omega Railmaster 2503.52 39mm - $2,490

Omega - 2503.52 · $2,490

This Omega Railmaster 2503.52 is a steel cased watch on an original Omega Steel bracelet, featuring a sapphire crystal and a dial with minor damage.

Condition: 8.9/10 - minor damage on dial, patina on hands, minimal hairlines
Case Size: 39mm diameter
Bracelet Size Fit: up to 7-7.25 inch wrists depending on wrist shape
Shipping Method: Fedex Priority Shipping

Posted at

May 22, 2026, 4:11 AM

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Omega Railmaster 2502.52 41mm - $2,590

Omega - 2502.52 · $2,590

Up for sale is my great condition Omega Railmaster 2502.52, measuring at 41mm with an automatic Omega 2403 movement.

Condition: Very good condition for its age
Case size: 41mm
Movement type: Automatic
Bracelet material: Steel

Posted at

May 17, 2026, 9:36 PM

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price reduction! 2026 Full Set Omega Railmaster 235.10.38.20.06.001

Omega - 235.10.38.20.06.001 · $3,999

This Omega Railmaster features a 38mm steel case with a gray gradient dial and is available for sale in excellent pre-owned condition. The watch includes a full set of accessories, making it an attractive option for those looking to purchase this model.

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

Posted at

May 14, 2026, 4:47 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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View listing on RolexForums