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

Reference 220.12.40.20.01.001

About this watch

The Omega Railmaster 220.12.40.20.01.001 embodies the perfect blend of classic styling and cutting-edge technology, making it a must-have for watch enthusiasts. This stunning timepiece boasts a 40 mm round stainless steel case with a matte grey finish, perfectly balanced dimensions, and a water resistance of 150 meters. The Master Chronometer certification ensures that the watch meets the highest standards of precision and performance, while its robust Omega caliber 8806 movement features 35 jewels for enhanced longevity. With a power reserve of 55 hours and resistance to magnetic fields up to 15,000 gauss, this watch is ideal for those who appreciate quality and style without being ostentatious.
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MSRP: $5,400
Market Price: $3,315

Key Features

  • 40mm round stainless steel case
  • Matte grey finish with stick and dot indexes
  • 150m water resistance
  • Master Chronometer certification
  • Omega caliber 8806 movement with 35 jewels
  • Power reserve of 55 hours
  • Resistance to magnetic fields up to 15,000 gauss

Specifications

Brand
Omega
Family
Railmaster
Model
Railmaster Omega Co-Axial Master Chronometer 40 Stainless Steel / Grey / Strap
Reference
220.12.40.20.01.001
Movement
8806
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 40mm
Dial Color
Grey
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Railmaster

Omega Railmaster

Recently discontinued Omega Seamaster Railmaster, includes full kit and undated warranty card.

  • Case Mark: small mark near 1 o'clock
  • Shipping Method: FedEx 2 Day
Posted at
Oct 18, 2025, 11:54 AM
Active
[WTS] Omega Railmaster 39mm - 2503.52

Omega Railmaster 39mm - 2503.52

Omega - 2503.52 · $2,995
The Omega Railmaster 39mm features a mechanical, self-winding movement (caliber 2403) with co-axial escapement and an exhibition case back.

  • Condition: really nice condition
  • Movement: caliber 2403
  • Bracelet size range: 7-7.25 inch
  • Case polish: light polish
Posted at
Oct 15, 2025, 9:21 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