Seiko Prospex SPB505 Market Price & Sold Comps
Sold median $745 · recent sales $649–$875 · 8 comps · updated 4 Oct 2026
- 30-day trend
- Thin data
- 90-day trend
- Flat
- Median Time To Sell
- 7.1 days
- Comp Window
- 180 days
Market report
Seiko Alpinist SPB505 listings on r/Watchexchange typically sell within a week, with a median time to marked sold of 7 days. Most asks fall between $740 and $795, and the median asking price of those later marked sold is $750. Excellent condition is most common among listings, and model years seen range from 2025 to 2026. With only 2 listings in the last 30 days versus 6 in the prior 90, the sample is too small to assess recent price movement.
Comp Price Map
Recent sales ran $649–$875. 30-day trend: Thin data. 90-day trend: Flat.
Recent Same-Reference Signals
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Market context is based on public watch listings WatchSnipe has indexed. It is not an appraisal, guarantee, or escrow recommendation.
Generated 2026-10-04 23:19 UTC. Market data is refreshed as WatchSnipe indexes public listings.