Seiko Prospex Speedtimer Solar Chrono Orange/Yellow SBDL117 (SBDL117). Current Prices, JDM Listings, Market Analysis
The Seiko Prospex Speedtimer Solar Chrono Orange/Yellow SBDL117 is a Japan-domestic solar chronograph with a color palette that reads more purposeful than flashy, the kind of piece that attracts buyers who want something distinct without chasing limited-edition premiums. Tonbo tracks the SBDL117 because it sits in the mid-range JDM gray market where price gaps between Japan and the US can be meaningful but require timing to act on. The current US market places this reference just under the $500 mark, making it an accessible entry point for Prospex Speedtimer buyers. With verified comps now on file, the pricing picture is cleaner than most newly tracked JDM references at this tier.
Current US Market Value
The SBDL117 price on the US secondary market currently sits at a median of $491, based on a sample of 10 transactions. That sample size is modest enough that a single outlier sale can nudge the median, so the interquartile range tells a more reliable story. The middle 50 percent of sales have landed between $415 and $581, a spread of roughly $166 that reflects normal condition and timing variance rather than any fundamental disagreement about what this watch is worth. Comp quality is rated 🟢 Verified, meaning the underlying data comes from confirmed eBay transactions rather than asking prices, which makes the $491 median a reasonably stable reference point for buyers evaluating an SBDL117 for sale in either market.
Active JDM Listings
The Japanese market has been active for the SBDL117 in the past two weeks, with multiple listings appearing on Mercari Japan and the broader JP marketplace on the same day. Prices in yen are clustering in a fairly tight band, and several examples are listed at excellent condition grades, which matters when calculating whether the arbitrage math works after fees and shipping.
- ¥79,800 on Mercari Japan (excellent condition, listed May 30)
- ¥64,000 on Mercari Japan (excellent condition, listed May 30)
- ¥64,000 on Mercari Japan (condition unspecified, listed May 30)
- ¥77,000 on JP marketplace (condition unspecified, listed May 30)
- ¥75,000 on JP marketplace, two separate listings (condition unspecified, listed May 30)
The ¥64,000 listings on Mercari are the most competitive currently visible. At recent exchange rates these translate to roughly $420 to $430 before any proxy service fees or import costs, which puts them at or just above the US p25 floor. The ¥79,800 Mercari listing at excellent condition is priced closer to the midpoint of the US range, leaving less room for a clean flip but still representing fair market value for a well-documented example.
Recent Alert History
No strict-buy or opportunity-tier alerts have fired for the SBDL117 in the past 90 days. That is not a negative signal on the watch itself. It reflects the current state of the US-Japan price gap, where listings have not dipped far enough below verified US resale value to trigger the thresholds Tonbo uses for actionable alerts. If the yen softens further or a motivated seller lists at a steeper discount, that calculus changes quickly. Subscribers watching this reference through Tonbo's signals feed will be notified if and when those conditions materialize.
Japan vs. US Price Gap
The gap between the lower end of active JDM listings and the US p25 value is narrow right now, which is why no alerts have fired. Buyers who can use a proxy service efficiently and are comfortable with standard JDM import costs may still find the ¥64,000 Mercari examples workable, particularly if condition proves out on inspection. The broader opportunity with the SBDL117 is that it trades with less competition than flagship Prospex references, so good listings tend to stay available longer than they would on a higher-profile model, giving buyers more time to evaluate. The primary risk here is standard for JDM sourcing: condition descriptions on Japanese consumer platforms can be generous, and the unspecified-condition listings in the current batch require more due diligence before committing. With a US sample of only 10 comps, there is also some residual data thinness that could make the median drift as more transactions are recorded.
For buyers already familiar with JDM gray market sourcing, the SBDL117 is the kind of reference worth watching on Tonbo's deals tracker for windows when yen pricing or seller motivation creates a cleaner entry point than what is currently visible.
Get Real-Time Alerts for Seiko Prospex Speedtimer Solar Chrono Orange/Yellow SBDL117
If you are tracking the Seiko Prospex Speedtimer Solar Chrono Orange/Yellow SBDL117 SBDL117 and want to know when a verified buying opportunity appears, Tonbo's alert system monitors JDM platforms continuously and flags listings that clear the bar on price, condition context, and US resale margin. Paid tiers with configurable alert thresholds are available at tonbomarket.com/pricing. If you want to start with a broad view of the JDM market before committing, the free newsletter at tonbomarket.com covers notable listings and market movements across tracked references each week.