Citizen Attesa Luna Program Moon Phase HAKUTO-R Inspired BY1001-66E (BY1001-66E, BY1001). Current Prices, JDM Listings, Market Analysis
The Citizen Attesa Luna Program Moon Phase BY1001-66E is a limited-edition JDM release tied to the HAKUTO-R lunar mission, a collaboration that gave this Attesa reference a cultural weight beyond standard production models. It carries moon phase functionality and the visual language of the Japanese private lunar program, which has helped it hold collector attention in both domestic and export markets. Tonbo tracks BY1001-66E price movements across Japanese platforms and US resale channels because the gap between the two has shown consistent arbitrage potential. At present, US buyers are paying a median of $800 for this reference while Japanese listings cluster well below that figure.
Current US Market Value
The current US median for the Citizen Attesa Luna Program Moon Phase HAKUTO-R Inspired BY1001-66E BY1001-66E sits at $800, with the middle 50% of transactions falling between $600 and $1,000. That range reflects genuine variance in how condition and seller type affect pricing on the US side. It is worth being direct about one limitation here: the comp quality rating for this model is 🟡 Limited comps, meaning the dataset behind these figures is built from a smaller transaction sample than Tonbo's higher-confidence references. The median is a useful directional signal, not a tight consensus number. As more transactions are recorded, confidence will improve. For now, treat the $600 to $1,000 band as the realistic field of play rather than anchoring to the $800 midpoint alone.
Active JDM Listings
Japan's secondary market is showing meaningful activity for the BY1001-66E right now. As of late May, multiple units appeared on Mercari Japan within a single day, spanning a range of conditions and prices. That kind of clustering suggests either a small wave of sellers timing the market or simply a model with enough secondary liquidity to surface regularly. Specific listings from May 30 include:
- ¥73,000 on Mercari (condition unknown)
- ¥75,000 on Mercari (condition unknown)
- ¥78,500 on Mercari (excellent condition)
- ¥80,000 on Mercari (excellent condition)
- ¥114,500 on Mercari (excellent condition)
The ¥114,500 ask stands out as an outlier relative to the cluster between ¥73,000 and ¥85,000. Whether that reflects a sealed box, original receipt, or seller optimism is not verifiable from listing data alone. The tighter cluster in the ¥73,000 to ¥85,000 range is where landed cost calculations for anyone looking to buy BY1001-66E Japan become actionable.
Recent Alert History
The BY1001-66E has generated four alerts in the past 90 days, a pace that signals consistent rather than explosive activity. Two of those fired at the opportunity tier, meaning landed cost came in meaningfully below the US median. The alert on May 30 showed a landed cost of $598 against the $800 US median, representing a 25% gross margin before fees and any selling friction. A May 25 alert posted an even stronger 28% gross margin at a $574 landed figure. The two activity-tier alerts, at landed costs of $662 and $574, still showed positive spreads but with tighter cushion. For a model with limited comps, seeing multiple opportunity-tier signals in a short window is notable. You can review how Tonbo classifies these tiers at tonbomarket.com/signals.
Japan vs. US Price Gap
The BY1001-66E price gap between Japan and the US exists largely because this is a JDM-oriented release with a story that travels better in English-speaking markets than the Japanese secondary market tends to price in. Collectors outside Japan who understand the HAKUTO-R context are willing to pay a premium that domestic Mercari sellers do not consistently demand. Sourcing and shipping costs from Japan typically add $60 to $120 to landed cost depending on the forwarder and declared value, which is already reflected in the alert figures above.
The primary risk here is condition variance combined with thin comps. With a limited transaction sample on the US side, a watch arriving in worse condition than expected cannot be easily repriced down and still cleared profitably. The ¥114,500 outlier in current Japanese listings also serves as a reminder that not every unit priced for export will clear at the median. Browse current flagged deals at tonbomarket.com/deals to see which listings are actively within range.
Get Real-Time Alerts for Citizen Attesa Luna Program Moon Phase HAKUTO-R Inspired BY1001-66E
If you are tracking BY1001-66E for sale across Japanese platforms and want to move when a genuine opportunity surfaces, Tonbo's alert system monitors this reference continuously. Paid tiers at tonbomarket.com/pricing include real-time notifications when a listing clears the opportunity or activity threshold for this model. If you want to understand the market before committing, the free newsletter at tonbomarket.com covers JDM arbitrage trends and notable model activity on a regular basis. No pressure to buy anything, just better information before you do.