Omega Railmaster Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster Chronograph / Bracelet / China Explorer Yellow

Reference 2512.54.00

About this watch

When it comes to luxury watches, few names resonate as deeply as Omega. Today, we’re diving into the captivating world of the Omega Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster Chronograph, specifically the limited edition model 2512.54.00, also known as the China Explorer Yellow. This stunning piece is not just a timepiece; it's a statement. Crafted from high-quality stainless steel, the 2512.54.00 is built to last. It features a closed sapphire crystal back that not only protects the intricate movement but also signifies the meticulous craftsmanship that Omega is known for. At the core of this timepiece lies the impressive Omega caliber 3313. Diving deeper into the specifications, we find a column wheel chronograph with co-axial escapement. This is where the magic happens. Unlike traditional escapements, the co-axial escapement reduces friction, which in turn enhances the watch's precision and longevity. The black dial with mixed indexes provides an elegant and functional aesthetic. It boasts arrow hands, making it easy to read the time at a glance. The yellow accents add a unique flair, ensuring that this watch stands out in any collection. With a diameter of 42.20 mm and a lug width of 21.00 mm, this watch strikes a perfect balance. Whether you're at a formal event or out on an adventure, it fits right in. Notably, this watch has a power reserve of 52 hours, meaning you can take it off for the weekend and still have it ticking away come Monday morning! The Omega Seamaster Aqua Terra 150M isn’t just about looks; it packs a punch with its functionality as well.
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Key Features

  • Limited edition of only 351 units
  • Column wheel chronograph with co-axial escapement
  • Power reserve of 52 hours
  • Water resistance of 150 meters
  • High-quality stainless steel case
  • Closed sapphire crystal back
  • Black dial with mixed indexes and arrow hands

Specifications

Brand
Omega
Family
Railmaster
Model
Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster Chronograph / Bracelet / China Explorer Yellow
Reference
2512.54.00
Movement
3313
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph, Column wheel
  • Co-Axial Escapement
Case
Stainless Steel 42.2mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Seamaster Railmaster – Black Dial

Omega Seamaster Railmaster – Black Dial

Up for grabs is an Omega Seamaster Railmaster with a black dial, complete with a full Jomashop kit and various other accessories.

  • Condition: Excellent
  • Case dimensions: 40mm diameter, 12.7mm thick, 47mm lug-to-lug
  • Movement power reserve: 55 hours
  • Water resistance: 150m
Posted at
May 3, 2025, 4:05 PM
Active
[WTS] Omega Seamaster Railmaster 220.10.40.20.01.001

Omega Seamaster Railmaster 220.10.40.20.01.001

The Omega Seamaster Railmaster is a timepiece built for railway workers and scientists, with a stainless steel case, vertically brushed black dial, and anti-magnetic resistance certified by METAS. It features a Co-Axial Master Chronometer Calibre 8806 and is water resistant to 150 meters.

  • Condition: Near-mint condition, hardly worn
  • Case size: 40mm diameter
  • Material: Stainless Steel Case & Bracelet
  • Water resistance: 150m depth rating
Posted at
May 1, 2025, 3:03 PM
Active
[WTS] Omega Railmaster Co-Axial Silver Dial - $2350

Omega Railmaster Co-Axial Silver Dial - $2350

A modern reimagining of Omega's 1957 classic, designed for durability and precision. The watch features a 40mm stainless steel case with a vertically brushed silver dial.

  • Condition: good condition
  • Case size: 40mm
  • Movement: Co-Axial Master Chronometer Calibre 8806 movement
Posted at
Apr 28, 2025, 4:04 PM
Active
[WTS] 2008 Omega Seamaster Aqua Terra Railmaster ref. 2504.52 - Excellent Full Set!

2008 Omega Seamaster Aqua Terra Railmaster ref. 2504.52 - Excellent Full Set!

Omega - 2504.52 · $6,000
This 2008 Omega Seamaster Aqua Terra Railmaster is a full set, including boxes, instructions, and documentation. It features a stainless steel case with a black dial and Super-LumiNova lume.

  • Condition: Excellent with some light wear, hairlines, scratches, and nicks on the case.
  • Case material: Stainless steel
  • Diameter: 36mm
  • Lug width: 19mm
Posted at
Apr 27, 2025, 11:46 AM
Active
[WTS] Omega Railmaster (Modern Black Dial, 40mm) – OEM Bracelet + Leather Strap + Extras

Omega Railmaster (Modern Black Dial, 40mm) – OEM Bracelet + Leather Strap + Extras

A modern Omega Railmaster with a sleek black dial in a 40mm brushed steel case, featuring Master Chronometer certification and antimagnetic resistance up to 15,000 gauss.

  • Condition: Pre-owned with light signs of use
  • Case Size: 40mm diameter
  • Movement: Omega Caliber 8806
  • Water Resistance: 150m
Posted at
Apr 21, 2025, 7:44 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