Omega Railmaster Railmaster Omega Co-Axial Master Chronometer 40 Stainless Steel / Silver / Strap

Reference 220.12.40.20.06.001

About this watch

The Omega Railmaster 220.12.40.20.06.001 is a masterpiece of Swiss watchmaking, combining classic elegance with cutting-edge technology. This stunning piece from Omega's Railmaster collection embodies precision, luxury, and durability. With its sleek matte silver finish, round shape, and 40 mm diameter, the Railmaster strikes a perfect balance between presence and wearability. The sapphire glass and closed case back ensure exceptional scratch resistance and durability. The Omega caliber 8806 self-winding movement with Co-Axial escapement is a game-changer in horology, boasting Master Chronometer certification and exceptional precision and performance. With its robust features, elegant design, and rich history, the Railmaster is a statement piece that combines functionality with elegance.
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MSRP: $5,400
Market Price: $2,888

Key Features

  • 40 mm diameter
  • Sapphire glass
  • Master Chronometer certification
  • Omega caliber 8806 self-winding movement
  • Co-Axial escapement
  • 150 meters water resistance
  • 55 hours power reserve

Specifications

Brand
Omega
Family
Railmaster
Model
Railmaster Omega Co-Axial Master Chronometer 40 Stainless Steel / Silver / Strap
Reference
220.12.40.20.06.001
Movement
8806
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 40mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Railmaster 36mm 2804.52.37 | Original Omega certificates (serviced)

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
Active
[WTS] 2017 OMEGA Seamaster Railmaster 40MM Blue Dial Steel Bracelet

2017 OMEGA Seamaster Railmaster 40MM Blue Dial Steel Bracelet

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
Active
[WTS] Omega Seamaster Railmaster Blue Dial 40mm (Ref. 220.12.40.20.03.001) – Like New – Full Kit

Omega Seamaster Railmaster Blue Dial 40mm (Ref. 220.12.40.20.03.001) – Like New – Full Kit

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
Active
[WTS] Omega Railmaster 40mm Full set, warranty until 2028 220.10.40.20.06.001

Omega Railmaster 40mm Full set, warranty until 2028 220.10.40.20.06.001

This Omega Railmaster features a 40mm case with a lug width of 20mm, making it suitable for most wrist sizes and easy to change straps.

  • Condition: great condition
  • Case size: 40mm
  • L2l: 47mm
  • Lug width: 20mm
Posted at
Jan 31, 2026, 8:16 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