Seiko Prospex SPB143 price on eBay right now
Across 38 live Buy It Now listings for "Seiko Prospex SPB143" on eBay US, the market median is $942. Half of listings sit between $825 and $1,245. Rescanned every 6 hours; last sweep 2026-09-15 02:28 UTC.
Cheapest Buy It Now right now
36% underbuy nowS/S Men's Seiko Prospex X Alpinist 200M Diver Automatic 24 Jewel Watch SPB117
27% underbuy nowSeiko SPB117 Prospex Black Dial Men’s Watch
24% underbuy nowSEIKO SPB155 Prospex 1959 Men's Sports Watch (Stainless/Green)
23% underbuy nowSeiko SPB155 Prospex Green Dial Men’s Watch
23% underbuy nowSeiko Prospex SPB481J1 Polygonal Diver 300m Champagne Dial - 41mm
21% underbuy nowMint Condition Seiko SPB121J1 Prospex Alpinist Watch 2022 with Box, Papers, Card
18% underbuy nowSEIKO PROSPEX SPB255J1 LIMITED EDITION SUMO 42MM AUTOMATIC DIVER
15% underbuy nowSeiko Prospex SBDC115 / SPB155J1 Automatic Mens Watch + Worldwide Warranty US*4
Price history
deal.ly records the median for this search once a day. The trend line and 7, 30 and 90 day changes appear here as the history builds.
Price by condition
| condition | median | listings |
|---|---|---|
| New | $837 | 31 |
| Pre-owned | $875 | 19 |
32% of current listings are promoted by the seller, which usually signals a motivated seller rather than a bargain. Compare against the condition medians above, not the overall median, before deciding a price is good.
What moves watches prices
Watch prices on eBay hinge on four things: reference number, whether box and papers are included, service history, and dial condition. A full set (box, papers, hang tags) routinely clears 10 to 20 percent more than a head-only watch. Sellers who list without the reference number or with stock photos price lower and sell slower, which is where the under-market listings come from. On anything over a thousand dollars, eBay Authenticity Guarantee applies and the listing photos are the authoritative record of condition.
How to read this
The median is the middle asking price of live Buy It Now listings for this exact search, so it reflects what sellers are asking today, not what buyers paid last month. Use the 25th percentile as a realistic quick-sale price and the 75th as a patient-seller price. Anything listed well under the 25th percentile is worth checking for condition, completeness, and seller feedback before you buy.