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 blue denim - used with bison leather strap.

OMEGA RAILMASTER blue denim - used with bison leather strap.

Omega - Railmaster · $2,900
This Omega Railmaster has a denim-inspired model with a stainless steel case, brushed 'blue jeans' dial, and a NAIAD LOCK design caseback. It features a Co-Axial Master Chronometer Calibre 8806 movement resistant to magnetic fields of 15,000 gauss.

  • Condition: Used with scratches on the top right of the bezel
  • Age: 1 year
  • Strap: Bison leather strap (not original)
  • Case Size: 40 mm diameter
Posted at
Nov 7, 2025, 2:26 PM
Active
[WTS] 2025 Omega Railmaster Black Dial w/Bracelet - Full Kit

2025 Omega Railmaster Black Dial w/Bracelet - Full Kit

The new Railmaster 38-mm reference in black, featuring a Co-Axial Master Chronometer Calibre 8806 and dual-color lume.

  • Condition: Near-mint with insignificant hair-line scratches
  • Case Dimension: 38mm diameter
  • Lug To Lug: 45mm length
  • Lug Width: 19mm width
Posted at
Nov 5, 2025, 8:56 PM
Active
[WTS] 2025 Omega Seamaster Railmaster 235.12.38.20.06.001

2025 Omega Seamaster Railmaster 235.12.38.20.06.001

A 2025 Omega Seamaster Railmaster in excellent condition, featuring a clean sapphire crystal and black dial, powered by an automatic Calibre 8806 Master Chronometer movement.

  • Condition: Excellent condition overall, minimal wear on stainless steel case
  • Case size: 38mm diameter
  • Movement type: Automatic
Posted at
Nov 5, 2025, 9:53 AM
Active
[WTS] Omega Seamaster Railmaster XXL 2806.52.37

Omega Seamaster Railmaster XXL 2806.52.37

Omega - 2806.52.37 · $2,799
A large watch suitable for the larger gentleman, featuring a modified Unitas movement and excellent lume.

  • Condition: Overall good condition, used strap
  • Case Size: 49.2mm diameter
  • Movement: Omega 2201, modified Unitas movement
  • Water Resistance: 150m depth rating
Posted at
Nov 4, 2025, 8:16 PM
Active
[WTS] 2000s Omega Seamaster Aqua Terra Railmaster 36mm ref. 2504.52

2000s Omega Seamaster Aqua Terra Railmaster 36mm ref. 2504.52

Omega - 2504.52 · $5,700
A 2000s Omega Seamaster Aqua Terra Railmaster 36mm with a stainless steel case and black dial. The watch features an automatic movement, Super-LumiNova lume, and a sapphire crystal.

  • Condition: Normal wear in the form of a few hairlines, faint scratches, and tiny nicks throughout, some micro patina on hands
  • Case Material: Stainless steel
  • Diameter: 36 mm
  • Lug Width: 19 mm
Posted at
Nov 2, 2025, 4:51 PM
Active
[WTS] Omega Railmaster

Omega Railmaster

This Omega Seamaster Railmaster is a recently discontinued model that includes full kit and undated warranty card, sold with original box.

  • Condition: Pre-owned with small mark near 1 o'clock on case
  • Case size: 40mm diameter
Posted at
Nov 1, 2025, 3:15 PM
Active
[WTS] Omega Railmaster 2503.52 (39.2mm) Full Set -Reduced

Omega Railmaster 2503.52 (39.2mm) Full Set -Reduced

Omega - 2503.52 · $3,050
This Omega Railmaster is a 39.2mm watch with Cal. 2403 movement and 44-hour power reserve.

  • Condition: great condition
  • Case Diameter: 39.2mm
  • Thickness: 11mm
  • Lug To Lug Length: 47mm
Posted at
Oct 31, 2025, 11:35 AM
Active
[WTS] Omega Seamaster Railmaster 39mm 2503.52 $2,600 2403 Movement

Omega Seamaster Railmaster 39mm 2503.52 $2,600 2403 Movement

Omega - 2503.52 · $2,600
This Omega Seamaster Railmaster is a 39mm model with the 2403 movement.

  • Movement: 2403
Posted at
Oct 31, 2025, 5:25 AM
Active