Caseback Terminal

Omega Seamaster Diver 300M 210.30.42.20.01.001 vs Omega Speedmaster Professional 310.30.42.50.01.002

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

OmegaSeamaster Diver 300M210.30.42.20.01.001 · Black$4,450OmegaSpeedmaster Professional310.30.42.50.01.002 · Moonwatch, sapphire$6,600

In short

The 210.30.42.20.01.001 sells for $2,150 less than the 310.30.42.50.01.002 ($4,450 against $6,600), 33% less, as a full set in excellent condition.

Against US retail, the 210.30.42.20.01.001 sells 34% under retail and the 310.30.42.50.01.002 27% under retail.

Side by side

Measure210.30.42.20.01.001310.30.42.50.01.002
Market value$4,450$6,600
Typical range$4,200 – $4,700$6,200 – $7,000
Unworn$4,750$7,050
Without box & papers$4,000$5,950
US retail$6,700$9,000
vs retail−34%−27%
Today——
For sale now——
Sales, 30 days——
Auctions that sold——
Case42mm42mm
MovementCal. 8800Cal. 3861
ProductionCurrentCurrent

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.

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