Omega Seamaster 300 234.30.41.21.01.001

Grade D: passion purchaseToday's call · Buy it to wear, not to flip

Short termunder 1 yearFairMid term1 to 3 yearsWeakLong term3+ yearsWeak

Rank #22 of 30 rated pieces in the Omega Vault

Retail (2026)$8,000

Typical sale today$4,500Typical range $4,200 to $4,800

Vs retail-44%

1-year-3%

Market range: the middle half of 20 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 2026 retail price.

Investment scorecard

Momentum43Measured 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.

Liquidity54How easily it sells: recorded sales in the last 12 months (300 or more scores 100) and eBay's 90-day sell-through rate.

Scarcity24Demand 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 entry69Where 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 safety92How 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 Seamaster 300 revives Omega's 1957 dive watch, one of the original trio alongside the Speedmaster and Railmaster.

The 2021 update slimmed the case, added a sandwich dial and moved to the calibre 8912.

It replaced the 2014 233.30.41.21.01.001, which used the calibre 8400.

Collectors value its vintage proportions and broad arrow hands.

Our verdict: A handsome heritage diver that settles about 45 percent under retail. Strong value used, weak as a store of value.

Configurations

Sizes	41mm
Case & bracelet	Stainless steel
Factory bracelet	Stainless steel bracelet
Factory bezels	Unidirectional black ceramic bezel with diving scale
Notable dials	Black sandwich dial with vintage Super-LumiNova
Caliber	8912 Co-Axial Master Chronometer
Production	2021 to present

Recent recorded sales

Sold	Example	Price
Oct 12, 2026	Pre-owned · eBay sale ↗︎	$4,500
Sep 8, 2026	Pre-owned · eBay sale ↗︎	$4,050
Aug 9, 2026	Pre-owned · eBay sale ↗︎	$5,375
Jul 20, 2026	Pre-owned · eBay sale	$3,400
Jul 12, 2026	Pre-owned · eBay sale	$4,775
Jul 9, 2026	Pre-owned · eBay sale	$3,931

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

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Quick answers

How much is a Omega Seamaster 300 234.30.41.21.01.001 worth?

Recorded eBay sales from the last 12 months put the typical Omega Seamaster 300 234.30.41.21.01.001 at $4,500, with the middle half selling between $4,200 and $4,800 (20 sales). Condition, box and papers move the price within that range.

Does the Omega Seamaster 300 234.30.41.21.01.001 sell above retail?

No. The typical sale of $4,500 is about 44% below the $8,000 retail price.

Is the Omega Seamaster 300 234.30.41.21.01.001 a good investment?

The Crown Index grades it D (53/100) from real resale data, and today's call is wear, not invest. Weak resale; buy it to wear, not to make money. Past prices are not a forecast.