Omega Seamaster Railmaster 220.10.40.20.01.001

B-

Grade B-: solid, selectiveToday's call · Hold

Short termunder 1 yearFairMid term1 to 3 yearsFairLong term3+ yearsStrong

Rank #13 of 30 rated pieces in the Omega Vault

Retail (2022)$5,200

Typical sale today$3,400Typical range $3,100 to $3,600

Vs retail-36%

1-year-2%

Market range: the middle half of 16 recorded eBay sales in the last 12 months.

Open in the interactive VaultLive eBay listings ↗︎

Market price history

Median recorded eBay sale price for each quarter with 3 or more sales. Dashed line marks the 2022 retail price.

Investment scorecard

Momentum45Measured price direction: the median recorded sale of the last 4 months against the median of 8 to 12 months ago. 50 means flat; small samples are pulled toward 50.

Liquidity62How easily it sells: recorded sales in the last 12 months (300 or more scores 100) and eBay's 90-day sell-through rate.

Scarcity44Demand against supply. For modern pieces, how far the market sits above or below current retail, plus a lift if production has ended. For vintage, how rarely one comes up for sale.

Value entry40Where the latest quarter's median sale sits inside its own 3-year range. Buying near the low scores high; buying at the high scores low.

Condition safety88How safe a typical example is: the age of the design, plus how tightly sale prices cluster (a wide spread means condition and originality swing the price).

The story

The Railmaster was introduced in 1957 as an anti-magnetic watch for engineers and scientists working near electrical fields.

The 2017 revival used the anti-magnetic Master Chronometer calibre 8806 in a 40mm case.

It was one of Omega's most affordable Master Chronometers.

Its plain dial and discontinued status give it quiet collector appeal.

Our verdict: A clean, anti-magnetic field watch at about two thirds of its last retail. Honest value, limited demand.

Configurations

Sizes	40mm
Case & bracelet	Stainless steel
Factory bracelet	Stainless steel bracelet
Factory bezels	Fixed brushed steel bezel
Notable dials	Black vertical-brushed dial with vintage Super-LumiNova
Caliber	8806 Co-Axial Master Chronometer
Production	2017 to 2023 (discontinued)

Recent recorded sales

Sold	Example	Price
Oct 3, 2026	Pre-owned · eBay sale ↗︎	$3,130
Sep 27, 2026	Pre-owned · eBay sale ↗︎	$3,250
Sep 23, 2026	Pre-owned · eBay sale ↗︎	$3,890
Aug 17, 2026	Pre-owned · eBay sale ↗︎	$2,900
Aug 8, 2026	Pre-owned · eBay sale ↗︎	$3,500
Jun 29, 2026	Pre-owned · eBay sale	$2,700

Recorded eBay completed sales, logged at our last data refresh.

See the Seamaster Railmaster in the Vault Browse all references

Quick answers

How much is a Omega Seamaster Railmaster 220.10.40.20.01.001 worth?

Recorded eBay sales from the last 12 months put the typical Omega Seamaster Railmaster 220.10.40.20.01.001 at $3,400, with the middle half selling between $3,100 and $3,600 (16 sales). Condition, box and papers move the price within that range.

Does the Omega Seamaster Railmaster 220.10.40.20.01.001 sell above retail?

No. The typical sale of $3,400 is about 35% below the $5,200 retail (2022).

Is the Omega Seamaster Railmaster 220.10.40.20.01.001 a good investment?

The Crown Index grades it B- (73/100) from real resale data, and today's call is hold. Solid resale, with limited room to grow from today's price. Past prices are not a forecast.