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Home/Browse/Omega/Seamaster Diver 300M Mid-Size Chronometer
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Omega Seamaster Diver 300M Mid-Size Chronometer
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Omega · Seamaster Diver 300M Mid-Size Chronometer

Omega Seamaster Diver 300M Mid-Size Chronometer

Ref. 2551.80.00

Sold out

39 matched eBay listings

Case

Diameter
36.25mm
Material
Stainless Steel
Water resistance
300m

Crystal & dial

Crystal
Sapphire
AR coating
Yes

Movement

Caliber
Omega 1120
Type
Automatic
Power reserve
44h
Alternatives

01The market

Market prices.

RetailNot listed

The forum market

See what sellers are asking.

Active listings1Across watch forums
Closed · 30d1Asking-price history

Browse forum listings and their asking prices. Market+ adds medians with their sample sizes and the weekly trend.

Retail stock & market context

Omega on the secondhand market

+7.9%

2026 so far · +2.1% to +14.0% · 41 matched watches

In line with the index

Year-by-year readings →

02The connection engine

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View all alternatives

03The community take

Owners talk.

“
In a nutshell

The Omega Seamaster Diver 300M Mid-Size Chronometer (ref. 2551.80.00) is an automatic watch, with a 36.25mm stainless steel case, powered by the Omega 1120 movement and a 44-hour power reserve. Water resistance is rated to 300m, under a sapphire crystal.

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04The paper trail

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05The discussion

Talk about the Omega Seamaster Diver 300M Mid-Size Chronometer.