Seiko Prospex Speedtimer Solar Chrono Black SBDL091 (SBDL091, SSC819). Current Prices, JDM Listings, Market Analysis
The Seiko Prospex Speedtimer Solar Chrono Black SBDL091, also sold internationally as the SSC819, is a solar-powered chronograph from Seiko's sport-focused Prospex line. Tonbo tracks this reference because it maintains an active presence on both Japanese secondary platforms and US resale channels, creating a measurable price gap worth monitoring. At a current US median of $499, it sits in a range where disciplined sourcing from Japan can generate meaningful margin. The comp set here is verified, giving buyers a reliable baseline to work from.
Current US Market Value
Based on 29 transactions, the SBDL091 price in the US currently sits at a median of $499. The interquartile range runs from $443 at the 25th percentile to $535 at the 75th percentile, indicating a fairly tight distribution without extreme outliers dominating the data. That spread of roughly $90 across the middle of the market tells you buyers and sellers are broadly aligned on value, which reduces pricing guesswork when you're evaluating a potential buy. The underlying comps are rated 🟢 Verified, sourced from eBay transaction data, so this median reflects actual sales rather than asking prices. For anyone researching SBDL091 for sale in the US, this range is a solid anchor.
Active JDM Listings
Recent Japanese listings for the SBDL091 show a wide spread in asking prices, which is typical for a model that appears across both retail-adjacent Yahoo Shopping storefronts and the more condition-variable Yahoo Flea Market. The current crop of listings includes some that price well above US market value and at least one that falls meaningfully below it. Here is what the active window looks like from the past 14 days:
- ¥49,500 on Yahoo Flea Market, seller describes no noticeable scratches or stains
- ¥55,660 on Yahoo Shopping, condition unspecified
- ¥60,000 on Yahoo Shopping, listed in good condition
- ¥63,800 on Yahoo Shopping, used condition
- ¥84,100 on Yahoo Shopping, condition unspecified
The ¥350,470 outlier on Yahoo Shopping is almost certainly an error listing or a bundled lot and should be disregarded for individual unit analysis. The ¥49,500 flea market listing is the most interesting data point if the condition description holds up under closer inspection. Anyone looking to buy SBDL091 from Japan should focus on verifying condition details before committing, since the condition field on flea market listings is self-reported.
Recent Alert History
Four activity-tier alerts have fired for this reference in the past 90 days, indicating consistent deal flow rather than sporadic availability. The outcomes varied. A May 28 alert landed at $400 against a $499 median, producing a 20% gross margin. A May 25 alert landed at $498 against a $620 median at that moment, also hitting the 20% threshold. A second May 25 alert came in at a landed cost of $602 against a $550 median, resulting in a negative 9% margin, a reminder that not every sourcing opportunity closes cleanly. A May 18 alert landed at $381 against a $400 median, producing only 5% gross margin. The pattern here is that margin varies substantially depending on the specific listing and what it costs to land it after fees and shipping. No strict-tier or opportunity-tier alerts have fired in this window, so the model is generating activity-level signals rather than high-conviction standout deals.
Japan vs. US Price Gap
The SBDL091 is a Japan-domestic release with the SSC819 serving as its international counterpart, and demand asymmetry between the two markets is the primary driver of the pricing gap. US buyers looking for the specific JDM configuration are willing to pay a premium that absorbs reasonable import costs, which is why the math can work at certain entry prices. The main risk with this reference is condition variance. The flea market channel can surface clean units at attractive prices, but self-reported condition grades in Japanese listings do not always translate to what Western buyers consider acceptable. Sellers on Yahoo Flea Market are not held to the same standards as established storefronts, so factoring in a due-diligence buffer for condition uncertainty is prudent. You can review how Tonbo grades and filters deal quality at tonbomarket.com/signals, and browse currently active sourcing opportunities at tonbomarket.com/deals.
Get Real-Time Alerts for Seiko Prospex Speedtimer Solar Chrono Black SBDL091
If you want to be notified when the Seiko Prospex Speedtimer Solar Chrono Black SBDL091 SBDL091 hits a price worth acting on, Tonbo's alert system monitors Japanese listings continuously and fires when margin thresholds are met. Subscriber tiers with deal-level access are detailed at tonbomarket.com/pricing. If you want to get a feel for the data before committing, the free newsletter at tonbomarket.com covers market movements across tracked JDM references on a regular cadence.