Caseback Terminal

Omega Speedmaster Professional 311.30.42.30.01.005 vs Omega Seamaster 300M 2531.80

Which is the better buy? What each sells for, how it holds up against retail, how many are for sale and how they move.

OmegaSpeedmaster Professional311.30.42.30.01.005 · Moonwatch, Cal. 1861$4,750OmegaSeamaster 300M2531.80 · Blue wave$3,050

In short

The 2531.80 sells for $1,700 less than the 311.30.42.30.01.005 ($3,050 against $4,750), 36% less, as a full set in excellent condition.

Side by side

Measure311.30.42.30.01.0052531.80
Market value$4,750$3,050
Typical range$4,450 – $5,050$2,850 – $3,250
Unworn$5,100$3,250
Without box & papers$4,300$2,750
US retail$5,350 last retail (2021)—
vs retail−11%—
Today——
For sale now——
Sales, 30 days——
Auctions that sold——
Case42mm41mm
MovementCal. 1861Cal. 1120
ProductionDiscontinued 2021—

Values are full set, excellent condition unless the row says otherwise, from real eBay sales and live listings.

How they've moved

The chart of how they move against each other fills in as the days go by.

More comparisons