Casio MR-G Square Black DLC (MRG-B5000B-1JR). Current Prices, JDM Listings, Market Analysis
The MRG-B5000B-1JR is the flagship DLC-coated variant of Casio's MR-G Square line, a series that applies premium materials and finishing to the iconic G-Shock square case. It sits at the top of the G-Shock pricing tier and attracts buyers who want the G-Shock DNA with a significantly higher build standard than the consumer lines. Tonbo tracks this model because its JDM-only distribution and limited secondary market volume create the conditions for arbitrage windows, even if those windows are narrow. At the moment, the US market shows a median of $2,456 with a single verified comparable sale on record.
Current US Market Value
The current US median price for the Casio MR-G Square Black DLC MRG-B5000B-1JR sits at $2,456, drawn from a sample size of one eBay sale flagged as a verified comp. That sample size is an important caveat. One data point establishes a reference, not a range, so the $2,456 figure should be read as a directional anchor rather than a settled consensus. The comp quality rating is 🟢 Verified, meaning the sale passed Tonbo's review criteria for legitimacy and condition disclosure, but buyers and sellers should expect the real transaction range to widen as more comps accumulate. If you are researching MRG-B5000B-1JR price history, this is the current best available US benchmark.
Active JDM Listings
Japan is showing consistent listing activity for the MRG-B5000B-1JR across the past 14 days, with prices clustering in the ¥320,000 to ¥400,000 range. Several listings have surfaced in excellent condition, and the pricing spread suggests some seller competition at the lower end. Anyone looking to buy MRG-B5000B-1JR from Japan has real options to evaluate right now.
- ¥320,000 on Yahoo Shopping, condition listed as excellent (May 23)
- ¥350,900 on Yahoo Shopping, condition listed as excellent (May 23)
- ¥350,900 on a Japanese platform, condition listed as excellent (May 24)
- ¥378,000 on Yahoo Shopping, condition unknown (May 23)
- ¥400,000 on a Japanese platform, condition unknown (May 24)
The condition-unknown listings at higher prices introduce real uncertainty. With a watch in this price class, condition disclosure matters significantly to resale value on the US side. Tonbo's signals feed flags listings with disclosed condition grades as higher-confidence opportunities.
Recent Alert History
One alert fired in the past 90 days for this model. On May 24, a strict-tier alert triggered at a landed cost of $2,515 against a US median of $2,545, producing roughly 1% gross margin. That is a thin result. A strict-tier alert means the deal met the minimum threshold for the signal to fire, but 1% gross margin leaves almost no room for condition downside, shipping variance, or any friction in the sale process. It tells you the arbitrage gap exists but is not wide right now. No opportunity-tier alerts have fired in this window, which would indicate a more actionable spread.
Japan vs. US Price Gap
The MRG-B5000B-1JR is a JDM-market release, which means US supply is structurally thin and largely dependent on import. That constraint keeps US prices elevated relative to what Japanese retail and secondary markets clear at, and it is the primary driver of any price gap that shows up in the data. At current yen levels, the conversion math on ¥320,000 to ¥400,000 listings lands importers in a range where margin exists in theory but compresses quickly once shipping, duties, and platform fees are factored in.
The main risk here is comp thinness on the US side. With one verified sale on record, a single transaction in poor condition or at an anomalous price could move the stated median materially. Buyers researching MRG-B5000B-1JR for sale in the US should treat the current $2,456 figure as a starting point and monitor for additional comps before committing to a sourcing decision. You can track developing deal flow on the Tonbo deals page.
Get Real-Time Alerts for Casio MR-G Square Black DLC
If you want to be notified when a better spread appears on the MRG-B5000B-1JR or similar MR-G models, Tonbo's alert tiers are designed for exactly that. Subscriber plans with configurable alert thresholds are available at tonbomarket.com/pricing. If you are not ready to subscribe, the free newsletter at tonbomarket.com covers JDM market movements and surfaces notable listings on a regular cadence. No hype, just data.