Seiko Prospex Diver SBDY141 (SBDY141). Current Prices, JDM Listings, Market Analysis
The Seiko Prospex Diver SBDY141 is a Japan domestic market dive watch tracked by Tonbo for buyers sourcing it through Japanese retail and resale channels. It sits in a segment of the Prospex lineup that draws consistent cross-border interest, largely because JDM Seiko references often carry specifications or finishing details unavailable in globally distributed models. The current US median for the SBDY141 price lands at $700, placing it in a range where sourcing strategy meaningfully affects what you actually pay. Tonbo tracks this reference to help buyers gauge whether a given listing represents fair value or an outlier.
Current US Market Value
Based on available data, the Seiko Prospex Diver SBDY141 SBDY141 carries a US median price of $700, with the middle 50 percent of transactions falling between $580 and $850. It is important to read those figures carefully. The sample size underlying this estimate is three transactions, which means the range reflects directional guidance rather than a statistically stable benchmark. The comp quality is rated 🟠Estimate only, meaning these figures are operator-estimated and should be treated as a starting point for your own research rather than a definitive market price. As more verified sales are recorded, the confidence level on these figures will improve. For the current state of pricing signals and how this model compares across the broader JDM dive watch category, see the Tonbo signals page.
Active JDM Listings
There are no active Japanese marketplace listings for the SBDY141 recorded in the past 14 days. That absence is itself useful information. It suggests either low turnover in the current window, seasonal softness in supply, or that available units are moving quickly before Tonbo's crawl captures them. When listings do appear, they surface across major Japanese platforms and tend to vary considerably in condition grade and box or paper status, both of which influence whether a given asking price is defensible against US resale comps.
- No active listings detected on Japanese platforms in the past 14 days
- Supply gaps like this are common for lower-volume JDM references
- When inventory does appear, condition grades and documentation status vary widely
- Listings for buy SBDY141 Japan searches may surface across multiple platforms with no single dominant source
- Monitoring this model over a 30 to 90 day window gives a more reliable read on typical supply frequency
Recent Alert History
No strict or opportunity alerts have fired for the SBDY141 in the past 90 days. This is an honest reflection of both the thin listing volume and the relatively small comp sample behind current pricing. Tonbo's alert tiers are designed to flag listings that clear a defined threshold against verified market data. When the underlying comp pool is limited, the system applies a higher bar before triggering signals to avoid sending buyers toward poorly benchmarked deals. As transaction data accumulates and listing activity picks up, alert frequency for this reference is likely to increase. You can review how Tonbo structures its alert logic and deal detection across all tracked models at the deals page.
Japan vs. US Price Gap
For JDM Prospex references like the SBDY141, the Japan-to-US price gap is driven by a combination of sourcing friction, import effort, and the premium buyers place on accessing a watch that was never officially sold outside Japan. Sellers on the US side are absorbing proxy service fees, domestic shipping within Japan, international freight, and the time cost of navigating condition uncertainty from listings that may have limited photos or untranslated descriptions. The main risk factor for this specific reference is comp thinness. With only three data points behind the current estimate, a single unusually high or low transaction can skew the apparent range, which means buyers should weigh condition and provenance carefully rather than anchoring too tightly to the median figure alone.
Track Seiko Prospex Diver SBDY141 on Tonbo
If the SBDY141 is on your list, Tonbo is a straightforward way to stay on top of what appears in Japan without manually checking platforms every day. The Collector tier is free to start at tonbomarket.com/dashboard and includes a five-model watchlist with no credit card required. When you are ready for real-time alerts, the Member tier runs $10 per month and adds Discord notifications that fire when a listing clears Tonbo's pricing thresholds for a tracked reference. Given the low listing volume this model has shown recently, having an alert in place is a more reliable approach than checking manually and hoping to catch something before it sells.