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Omega Seamaster Railmaster 40mm Steel Blue Dial NATO Strap 220.12.40.20.03.001
  • Omega Seamaster Railmaster 40mm Steel Blue Dial NATO Strap 220.12.40.20.03.001
  • Omega Seamaster Railmaster 40mm Steel Blue Dial NATO Strap 220.12.40.20.03.001
Omega Seamaster Railmaster 40mm Steel Blue Dial NATO Strap 220.12.40.20.03.001

Omega Seamaster Railmaster 40mm Steel Blue Dial NATO Strap 220.12.40.20.03.001 Omega Seamaster Railmaster 40mm Steel Blue Dial…

Reference 220.12.40.20.03.001

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Omega Seamaster Railmaster 40mm Steel Blue Dial NATO Strap 220.12.40.20.03.001

$4,899.00

By Omega

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Omega Seamaster Railmaster 40mm Steel Blue Dial NATO Strap 220.12.40.20.03.001

Omega Seamaster Railmaster 40mm Steel Blue Dial NATO Strap 220.12.40.20.03.001

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Omega Seamaster Railmaster 40mm Steel Blue Dial NATO Strap 220.12.40.20.03.001

Catalogue watch price: $4,899.00 USD

Your $200 deposit is applied to the watch’s purchase price. It is refundable only if Bizak & Co. cannot fulfill your order.

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The Omega Seamaster Railmaster 220.12.40.20.03.001 is a 40mm stainless steel sports watch featuring a striking blue dial with index and Arabic numeral markers, a stainless steel bezel, and a casual yet purposeful NATO strap. Originally conceived as a tool watch built to resist magnetic fields, the Railmaster lineage carries a distinguished heritage rooted in mid-century precision watchmaking, and this modern iteration brings that legacy into sharp contemporary focus.

What sets reference 220.12.40.20.03.001 apart is the combination of the sporty 40mm case size, the vivid blue dial, and the versatile NATO strap that makes it equally at home on a weekend adventure or a dressed-down weekday. Bizak & Co. offers this Omega Seamaster Railmaster for sale at the best price with the assurance of an authorized dealer's quality standard — contact us today or buy online to add this modern classic to your collection.

Compare it across every Seamaster Railmaster reference we carry, or browse the full Omega collection at Bizak & Co.

Buy this Seamaster Railmaster, trade in your current watch, or sell us yours. Contact Bizak & Co. to make an offer or request a fair-market valuation.

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The Omega Seamaster Railmaster is one of watchmaking's most storied comeback stories. First introduced in 1957 alongside the Seamaster 300 and the Speedmaster as part of Omega's legendary "Professional" trio, the Railmaster was engineered specifically to withstand powerful magnetic fields that could disrupt the accuracy of conventional mechanical watches — a critical requirement in environments ranging from railway operations to early scientific laboratories. Its revival in the modern Omega catalog honors that anti-magnetic heritage while delivering thoroughly contemporary finishing and wearability.

Reference 220.12.40.20.03.001 presents the Railmaster in a 40mm stainless steel case — an ideal diameter that sits confidently on a wide range of wrist sizes without veering into oversized territory. The stainless steel construction gives the case a robust, polished-yet-purposeful character consistent with the Seamaster family's ethos of capable elegance. At 40mm, this watch occupies a sweet spot between the compact dress watch and the full-sized sport watch, making it one of the most wearable references in the current Omega lineup.

The blue dial is the undisputed centerpiece of this reference. Featuring a combination of index and Arabic numeral markers, it achieves a dual personality: sporting enough to command attention on an active day, yet refined enough to complement a blazer or smart casual attire. Blue dials have long been associated with the Seamaster family, and on this Railmaster they read with a depth and richness that photographs rarely fully capture — one of those details best appreciated in person.

The NATO strap rounds out the specification with a relaxed, adventure-ready sensibility. NATO straps have a distinguished military history and are celebrated for their durability, comfort, and the ease with which they can be swapped. On the Railmaster, the NATO strap reinforces the watch's tool-watch DNA and its connection to a tradition of professional instruments built to be worn hard and worn proudly. It also makes the watch exceptionally comfortable for all-day wear.

Whether you are a longtime Omega enthusiast looking to complete the 1957 trio in modern form or a first-time buyer seeking a versatile, prestigious sport watch, the Railmaster rewards careful consideration. Reach out to the team at bizakandco.com to ask questions, arrange purchase, or explore our full Omega inventory.
Technical Details
Reference
220.12.40.20.03.001
Model
Seamaster Railmaster
Case material
Stainless Steel
Bracelet material
Fabric
Dial
Blue with index and Arabic numeral markers
Case size
40mm
FAQ

1. What makes the Omega Seamaster Railmaster 220.12.40.20.03.001 special?
The Railmaster 220.12.40.20.03.001 carries the legacy of Omega's original 1957 anti-magnetic professional watch, reinterpreted with a striking blue dial and NATO strap for modern wearers. Its heritage as one of Omega's three iconic 1957 "Professional" models gives it significant collector and enthusiast appeal. The 40mm stainless steel case and versatile NATO strap make it as practical as it is historically meaningful.

2. What movement powers the Omega Seamaster Railmaster 220.12.40.20.03.001?
The specific caliber details for this reference have not been provided in our current listing. We encourage you to contact Bizak & Co. directly at bizakandco.com for full technical specifications on this model. Our team of watch specialists will be happy to provide complete movement information before you purchase.

3. What is the case size of the Omega Railmaster 220.12.40.20.03.001?
This Omega Seamaster Railmaster features a 40mm stainless steel case, a size widely regarded as one of the most universally flattering on the wrist. It is neither too compact nor too large, making it suitable for a broad range of wrist sizes and occasions. The 40mm diameter sits comfortably within the sport-watch category while remaining elegant enough for smarter dress.

4. Is the Omega Seamaster Railmaster good for everyday wear?
Yes — the Railmaster was originally conceived as a robust professional tool watch, and its modern iteration is built to handle daily wear with ease. The stainless steel case offers strong resistance to the knocks and scratches of everyday life, and the NATO strap is celebrated for its durability and all-day comfort. The blue dial with mixed index and Arabic markers is also highly legible in a variety of lighting conditions.

5. What does the blue dial on the Omega Railmaster 220.12.40.20.03.001 look like?
The dial features a blue finish adorned with a combination of index hour markers and Arabic numerals, delivering a clean yet characterful look. Blue dials are a hallmark of the Seamaster family and are prized for the depth and richness of color they display in different lighting. This combination of indices and Arabic numerals gives the dial a sporty, purposeful readability consistent with the Railmaster's tool-watch roots.

6. Is the Omega Seamaster Railmaster 220.12.40.20.03.001 a good buy, and how can I purchase it from Bizak & Co.?
Reserve this watch online with a $200 deposit. It combines prestigious heritage, a versatile 40mm format, and the timeless appeal of a blue dial with NATO strap — making it an excellent choice for both first-time Omega buyers and seasoned collectors. Visit bizakandco.com, browse our Omega collection, or contact our team directly to buy online or ask any questions before purchasing.

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U.S. overnight shipping is $100; international shipping is $500. Dispatch takes 2–3 business days after your wire clears. International transit times vary. Shipping details.

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