Seiko Prospex 62MAS Reissue Black SPB145 (verify vs sbdc051) (SPB145, SPB145J1): Current Prices, JDM Listings, Market Analysis
The Seiko Prospex 62MAS Reissue Black SPB145 sits in a line of modern reissues that Seiko has used to reconnect the Prospex family to its 1965 dive watch roots. The SPB145J1 designation marks it as a JDM release, which is why it draws consistent attention from buyers looking to source outside the US retail channel. Tonbo tracks the SPB145 price because JDM availability and US demand don't always move in sync, and the black dial configuration carries its own market behavior worth monitoring. At a current US median of $775, this reference occupies a mid-tier position in the modern Seiko dive watch segment.
Current US Market Value
The current US median price for the Seiko Prospex 62MAS Reissue Black SPB145 is $775, with the interquartile range also landing at $775 to $775, which reflects a single verified sale rather than a distribution of transactions. The comp quality is rated 🟢 Verified comps, meaning the source data passed Tonbo's filtering criteria, but buyers and sellers should treat a one-sale sample with appropriate caution. A single data point establishes a reference marker, not a reliable floor or ceiling. As more SPB145 sales are captured over time, that range will sharpen. For now, $775 represents the most defensible anchor available for this reference in the US secondary market.
Active JDM Listings
There are no active JDM listings for the SPB145J1 captured in the past 14 days. That absence doesn't mean the watch never appears in Japan, but it does mean the current monitoring window came up empty. When the SPB145 for sale does surface in the Japanese market, listings typically appear on platforms like Mercari Japan, Yahoo Auctions Japan, and Rakuten. Characteristics to watch for when listings do appear include:
- Condition grade and whether the bracelet or a strap is included
- Box and papers status, which meaningfully affects price and resale confidence
- Seller feedback volume and rating on the originating platform
- Whether the listing is priced for quick sale or sitting at ask with room to negotiate
- Shipping and import fee disclosures, which affect landed cost calculations
Checking Tonbo's live deals feed is the most efficient way to catch SPB145J1 listings when they do appear without manually monitoring multiple Japanese platforms.
Recent Alert History
No strict or opportunity alerts have fired for the SPB145 in the past 90 days. This is an honest reflection of the data, not a gap in coverage. Alert silence on a model can mean several things: the watch isn't appearing frequently enough in Japan to generate price signals, the listings that do appear aren't clearing the threshold for a meaningful discount relative to US comps, or the comp base is too thin to generate a confident spread calculation. With only one US sale on record, the system has limited room to identify a clear arbitrage window with confidence. Alert activity for this reference is worth watching as the comp pool grows.
Japan vs. US Price Gap
The SPB145J1's JDM-only status is the primary reason it draws arbitrage interest, since buyers outside Japan who want this specific variant have fewer retail options and often turn to the secondary market. When JDM supply is low in Japan and US buyers remain interested, that imbalance can support a price gap worth acting on. The main risk factor here is the black dial variant note attached to this reference, which signals that condition variance and model verification matter more than usual. Confirming you're looking at the SPB145 and not the closely related SBDC051 before committing to a buy Japan transaction is not a minor detail. Dial and reference verification should happen before any purchase decision, particularly when the comp sample is this small.
Get Real-Time Alerts for Seiko Prospex 62MAS Reissue Black SPB145 (verify vs sbdc051)
When a priced-to-move SPB145J1 listing surfaces in Japan, it tends to move quickly. Tonbo's alert system is built to flag those moments before they disappear. You can review pricing methodology and set up tracking for this reference at tonbomarket.com/pricing. For a broader view of which JDM models are generating active signals right now, the signals page is updated continuously. A free newsletter covering JDM watch market movements is also available at tonbomarket.com for buyers who want periodic coverage without daily monitoring.