Grand Seiko Self-Dater 5722-9990 Lion Medallion (5722-9990): Current Prices, JDM Listings, Market Analysis
The Grand Seiko Self-Dater 5722-9990 Lion Medallion is a vintage JDM piece tracked for its collector appeal and consistent presence in the Japanese secondary market. The lion medallion dial treatment sets it apart from standard vintage Grand Seiko references, which is part of what sustains buyer interest on the US side. Current 5722-9990 prices sit at a US median of $1,650, with active deal flow visible from Japan suggesting ongoing arbitrage opportunity for buyers who move carefully. Tonbo tracks this reference because the Japan-to-US price spread has produced verified alert signals within the past 30 days.
Current US Market Value
The current US median for the Grand Seiko Self-Dater 5722-9990 Lion Medallion is $1,650, with the middle 50 percent of transactions falling between $1,300 and $2,100. That spread is wide, which reflects genuine condition variance in the market rather than valuation disagreement. It is worth noting that this comp is based on a sample size of six operator-verified transactions, which means the 🟠Estimate Only rating applies here. The $800 range between the 25th and 75th percentile is a real signal that the 5722-9990 price outcome depends heavily on case condition, dial originality, and whether a bracelet is present. Buyers pricing a specific piece should treat the median as directional, not definitive.
Active JDM Listings
Recent activity shows a healthy number of 5722-9990 for sale listings in Japan over the past two weeks, with prices spanning a wide range depending on condition. The spread between the lowest and highest current asks is substantial, and at least one listing is explicitly graded as junk, which is a useful reminder that condition sorting matters before any purchase decision. Here is what the active market looks like right now.
- ¥140,800 on Yahoo Japan Auctions (condition unknown)
- ¥174,000 on Yahoo Japan Auctions (condition unknown)
- ¥194,900 on Mercari Japan (condition unknown)
- ¥248,000 on Yahoo Japan Auctions (condition unknown)
- ¥288,000 on Yahoo Japan Auctions (good condition)
The single good-condition ask at ¥288,000 is the only listing with a verified condition grade and sits at the top of the current Japan range. Anyone looking to buy 5722-9990 from Japan should treat the lower-priced unknowns as speculative until condition is confirmed through additional photos or seller communication.
Recent Alert History
Alert activity on the 5722-9990 has been concentrated and recent. Four signals fired on May 29 alone, spanning three different alert tiers. A strict-tier alert came in with a landed cost of $920 against the $1,650 US median, representing a 44 percent gross margin before fees and any holding costs. Two activity-tier alerts landed at $1,064 and $1,093, each showing roughly 34 to 35 percent gross margin. An opportunity-tier alert at $1,275 landed sat at 23 percent gross margin. That volume of signals in a single day points to a moment of above-average Japan-side availability, which can compress quickly as buyers respond. You can see how Tonbo classifies and scores these signals at tonbomarket.com/signals.
Japan vs. US Price Gap
The Japan-to-US price gap on the Grand Seiko Self-Dater 5722-9990 Lion Medallion is driven by the combination of deep Japanese domestic supply and relatively thin US comp volume. With only six confirmed US transactions in the dataset, demand is real but not high-frequency, which means a single above-median sale can distort the picture. The primary risk on this reference is condition variance: the gap between a clean original-dial example and a polished or redone case is large enough to move realized value by several hundred dollars, and that judgment call happens before you know what you have in hand. Buyers sourcing from listings with unknown condition grades should budget for the possibility of a piece that lands at the lower end of the $1,300 to $2,100 range. Additional sourcing ideas and vetted deal flow for this reference are available at tonbomarket.com/deals.
Get Real-Time Alerts for the Grand Seiko Self-Dater 5722-9990 Lion Medallion
Tonbo monitors JDM listings for the 5722-9990 and sends tier-graded alerts when landed cost creates a meaningful spread against the US median. If you want to be notified the next time a strict or opportunity-tier signal fires on this reference, alert subscriptions are available at tonbomarket.com/pricing. For a free look at how the system works and what the broader JDM market is doing, the Tonbo newsletter at tonbomarket.com is a good starting point.