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Omega
Seamaster Railmaster 220.12.40.20.03.001
Median resale value
$4,404
Based on 10 listings — treat as indicative
$3,850middle 50% of listings$6,855
Based on 10 listings — treat as indicative
Every active listing we track, bucketed by asking price. The band you buy in tells you more than the average does.
10 active listings. Median asking price $4,404. The middle 50% ask between $4,025 and $5,610.
Counts here cover listings with a known price, so they can be lower than the active total above.
| Listing | Posted | Condition | Authenticity | Price ↑ | vs median | ||
|---|---|---|---|---|---|---|---|
 | eBay | 9/21/2026 | Good | Unknown | $3,850 | 13% below the median price | View on eBay |
 | eBay | 10/6/2026 | Good | Unknown | $3,878 | 12% below the median price | View on eBay |
 | eBay | 10/24/2026 | Good | Unknown | $3,983 | 10% below the median price | View on eBay |
 | eBay | 9/23/2026 | Good | Unknown | $4,150 | 6% below the median price | View on eBay |
 | eBay | 10/6/2026 | New | Unknown | $4,320 | 2% below the median price | View on eBay |
 | eBay | 10/10/2026 | Good | Unknown | $4,487 | 2% above the median price | View on eBay |
 | eBay | 9/23/2026 | Good | Unknown | $4,766 | 8% above the median price | View on eBay |
 | eBay | 9/24/2026 | Good | Unknown | $5,891 | 34% above the median price | View on eBay |
 | eBay | 10/9/2026 | Good | Unknown | $6,855 | 56% above the median price | View on eBay |
 | eBay | 10/10/2026 | Good | Unknown | $6,855 | 56% above the median price | View on eBay |
 | eBaySold | 8/15/2026 | Good | Unknown | $3,598 | 18% below the median price | Sold9/26/2026 |
 | eBaySold | 6/16/2026 | Good | Unknown | $3,740 | 15% below the median price | Sold7/31/2026 |
 | eBaySold | 8/18/2026 | Good | Unknown | $4,570 | 4% above the median price | Sold10/8/2026 |
We currently track 13 listings for the Omega Seamaster Railmaster 220.12.40.20.03.001, with prices ranging from $3,850 – $6,855, from eBay.
The Omega Seamaster Railmaster 220.12.40.20.03.001 is a distinguished timepiece that embodies the spirit of adventure and precision synonymous with the Omega brand. Part of the Seamaster collection, this model showcases a robust stainless steel case with a polished finish, measuring 40mm in diameter, which strikes a perfect balance between elegance and durability. The watch features a striking black dial, enhanced with luminous hands and markers for optimal readability in various lighting conditions. Its scratch-resistant sapphire crystal ensures clarity and protection, while the automatic movement guarantees reliable timekeeping. The Railmaster's unique anti-magnetic properties make it an ideal choice for professionals and enthusiasts alike, ensuring performance in challenging environments. With a comfortable stainless steel bracelet, this model offers a secure fit and classic aesthetic that complements both casual and formal attire. The Omega Seamaster Railmaster stands as a testament to Omega's heritage in watchmaking, merging innovative technology with timeless design, making it a coveted addition for any watch collector or aficionado.
The Omega Seamaster Railmaster 220.12.40.20.03.001 is a pre-owned Omega watch available for purchase across multiple resale platforms. Shop 13 active listings with prices ranging from $3,850 – $6,855. Find this item on eBay. Listings are available in Good and New condition, so you can choose the quality and price point that suits you.
Current market prices by condition and authenticity, based on active listings.
| Condition | Listings | Price range |
|---|---|---|
| Good | 9 | $3,850 – $6,855avg $4,968 |
| New | 1 | $4,320avg $4,320 |
| Status | Listings | Price range |
|---|---|---|
| UnknownListings where authentication status is not specified | 10 | $3,850 – $6,855avg $4,903 |
| Marketplace | Listings | Total value |
|---|---|---|
| eBay | 10 | $49.0K |
| Total | 10 | $49.0K |
Listing counts in the condition and platform tables are filtered subsets (listings with a known condition or price). The “active listings” figure at the top of the page reflects all tracked active listings and may be higher.
