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.
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 RAILMASTER 235.10.38.20.06.001 38MM 2025 COMPLETE🔥](https://preview.redd.it/o369o1jwg5yf1.jpg?width=640&crop=smart&auto=webp&s=c47c3303819e7af130950ce57ab19c5653900503)
![[WTS] Omega Railmaster](https://preview.redd.it/bxqbil4u93yf1.jpg?width=640&crop=smart&auto=webp&s=e61129f6e12f050583eaca3d7f5d106b8c59e98c)
![[WTS] 2025 Omega AT Railmaster Grey on Bracelet - Full Kit](https://preview.redd.it/xrjglyezzixf1.jpg?width=640&crop=smart&auto=webp&s=82ed229fe28b3214ece5a9fd5fff1184e525b6fc)
2025 Omega AT Railmaster Grey on Bracelet - Full Kit
Up for sale is Omega's newest version of the Railmaster in grey, featuring an in-house automatic Co-Axial Master Chronometer Calibre 8806 with a 55-hr power reserve.
- Condition: near-mint
- Case Dimension: 38 mm diameter
- Lug Width: 19 mm
- Thickness: 12.4 mm
![[WTS] Omega Railmaster 2503.52 (39.2mm) Full Set](https://external-preview.redd.it/cjM2ZXJrZnVlMnhmMQfhUOAUty__3AJshyNDb8hjAYxLjw1Pd2lap5ndE-KN.png?format=pjpg&auto=webp&s=35fa29e916ae4449dd4261b4c91d0042ecc4316a)
Omega Railmaster 2503.52 (39.2mm) Full Set
39.2mm Railmaster with Cal. 2403 movement and 44HRs power reserve.
- Condition: Great condition, no service history
- Case Diameter: 39.2mm
- Thickness: 11mm
- Lug To Lug: 47mm
![[WTS] Omega Railmaster 36mm 2804.52.37 | serviced (Original Box & Papers)](https://preview.redd.it/omyrjc44evwf1.jpg?width=640&crop=smart&auto=webp&s=75eb4481ffef0afaef63819e9f8198854e42407a)
Omega Railmaster 36mm 2804.52.37 | serviced (Original Box & Papers)
The Omega Railmaster is an iconic watch with a no-nonsense dial design that has remained largely unchanged since 1957.
- Condition: recently serviced
- Case size: 36mm
- Dial type: 3-6-9
![[WTS] Omega Seamaster Railmaster 40 mm, steel on steel - 2,599 USD](https://preview.redd.it/ukaai8bydawf1.jpg?width=640&crop=smart&auto=webp&s=81d5e81abc0ad131f76f71364576423fbf81bf79)
Omega Seamaster Railmaster 40 mm, steel on steel - 2,599 USD
A 40mm steel Omega Seamaster Railmaster, with a METAS-certified movement and 15 Bar water resistance.
- Condition: Mint – Worn Twice
- Case Size: 40mm diameter
- Lug To Lug: 47mm
- Thickness: 12.7mm
![[WTS] Omega Railmaster](https://preview.redd.it/jbht0z5w6wvf1.jpg?width=640&crop=smart&auto=webp&s=24639cca789955bcf9fb5638bb5bc2de2612dacf)
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
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
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