Omega Railmaster Railmaster Omega Co-Axial Master Chronometer 40 Stainless Steel / Blue / NATO

Reference 220.12.40.20.03.001

About this watch

The Omega Railmaster 220.12.40.20.03.001 is a masterpiece of engineering, boasting a stunning blue dial with a matte finish that exudes sophistication and elegance. Its 40mm diameter strikes the perfect balance between boldness and refinement, while the stick and dot indexes enhance visibility without compromising the minimalist aesthetic. Equipped with a sapphire crystal, this watch is both scratch-resistant and durable enough for daily wear. At its core lies the Omega caliber 8806, a self-winding movement that's a testament to precision and reliability. With a power reserve of 55 hours and Master Chronometer certification, this watch performs exceptionally well under various conditions, including magnetic fields up to 15,000 gauss. The Co-Axial escapement reduces friction between parts, leading to greater accuracy and longevity. Whether you're in the boardroom or on the beach, this watch is a reliable companion that checks all the boxes for style, performance, and heritage.
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MSRP: $5,400
Market Price: $2,431

Key Features

  • Omega caliber 8806 self-winding movement
  • Sapphire crystal for scratch resistance and durability
  • Master Chronometer certification for exceptional accuracy
  • Co-Axial escapement for reduced friction and increased longevity
  • 150m water resistance for swimming, snorkeling, or rainy days
  • 40mm diameter with 12.65mm height and 20mm lug width for comfortable wear

Specifications

Brand
Omega
Family
Railmaster
Model
Railmaster Omega Co-Axial Master Chronometer 40 Stainless Steel / Blue / NATO
Reference
220.12.40.20.03.001
Movement
8806
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 40mm
Dial Color
Blue
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
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