Seiko Prospex Speedtimer Solar Chrono Silver SBDL087 (SBDL087). Current Prices, JDM Listings, Market Analysis
The Seiko Prospex Speedtimer Solar Chrono Silver SBDL087 is a solar-powered chronograph from Seiko's Prospex sport line, sold primarily through the Japanese domestic market. It appears regularly enough in Japan-to-US arbitrage tracking to generate verified alert signals, which is why Tonbo monitors it actively. On the US side, transaction data is thin but confirmed, with the current median sitting at $450 based on screened eBay sales. The Japan-side picture is considerably more active, with multiple listings surfacing in the past two weeks across a wide price band.
Current US Market Value
The current US median price for the Seiko Prospex Speedtimer Solar Chrono Silver SBDL087 is $450, with the interquartile range also landing at $450 to $450 due to a sample size of one verified comp. That single-transaction sample means the $450 figure should be treated as a directional anchor rather than a settled market price. The comp quality is rated 🟢 Verified, meaning the sale passed Tonbo's screening criteria and is not a listing price or estimate. As more SBDL087 transactions accumulate, the median will firm up. For now, buyers and sellers should weight the recent alert data alongside the US comp when assessing value. Alert signals from late May pegged the US median higher, at $500 to $620 depending on the alert, which suggests the single eBay comp may be on the conservative end of where this watch actually clears.
Active JDM Listings
Japan-side inventory for the SBDL087 is showing meaningful activity. A cluster of listings appeared on May 30 across multiple platforms, ranging from deep-discount outliers to near-unused examples priced closer to retail. That spread is typical for a JDM model that moves through both professional resellers and individual sellers on flea market platforms. Here is a snapshot of recent SBDL087 for sale activity in Japan.
- ¥55,000 on a Japanese auction platform, condition unknown
- ¥66,000 on a Japanese auction platform, condition listed as excellent
- ¥60,600 on a Japanese auction platform, condition listed as excellent
- ¥12,650 on Yahoo Shop, condition unknown (two separate listings at this price)
- ¥40,000 on Yahoo Flea Market, described as close to unused
The ¥12,650 Yahoo Shop listings stand out as unusually low and warrant scrutiny before assuming they represent a buyable opportunity. Condition details and authenticity should be confirmed through the platform's seller rating system before acting on prices at that level.
Recent Alert History
The SBDL087 has generated three alerts in the past 90 days, all firing within a four-day window in late May. Two alerts came in at the opportunity tier, with a landed cost of approximately $435 against a US median of $500, representing a 13 percent gross margin. A third alert hit the activity tier, with a higher landed cost of $524 and a US median of $620, producing a 15 percent gross margin. That activity tier signal points to a slightly different price segment, likely a cleaner or better-documented example. The clustering of signals in a short window suggests the model sees periodic availability bursts rather than steady daily flow. Tracking it through Tonbo's signals feed is the most practical way to catch these windows as they open.
Japan vs. US Price Gap
The gap between Japanese asking prices and US clearing prices on the SBDL087 comes from a combination of JDM exclusivity and lower collector awareness outside Japan. Models in the Speedtimer Solar line do not have the same secondary market liquidity in the US as core Prospex dive references, which keeps US comps sparse and creates pricing inefficiencies when well-conditioned examples appear in Japan at reasonable yen-denominated prices. Shipping, import handling, and PayPal or proxy fees typically absorb several percentage points of that gap, which is why the alert system flags landed cost rather than raw listing price. The primary risk here is condition variance combined with comp thinness. With only one US sale on record, a watch that arrives in worse shape than described has limited exit options at the modeled price, and the US median has not been stress-tested by enough transactions to confirm its reliability.
Get Real-Time Alerts for Seiko Prospex Speedtimer Solar Chrono Silver SBDL087
If you want to buy SBDL087 from Japan at verified margins, Tonbo's alert system does the monitoring for you. Opportunity and activity tier signals for this reference have already fired multiple times in May. Paid subscribers get real-time notifications the moment a qualifying listing appears. You can review plan options at tonbomarket.com/pricing. If you are not ready to subscribe, the free newsletter at tonbomarket.com covers broader JDM market movement and includes selected deal highlights. You can also browse current tracked opportunities across all monitored references at tonbomarket.com/deals.