Citizen Series 8 831 Ice Blue NB6051-59L (NB6051-59L, NB6051). Current Prices, JDM Listings, Market Analysis

The Citizen Series 8 831 Ice Blue NB6051-59L is a JDM-market mechanical watch from Citizen's premium Series 8 line, notable for its ice blue dial and the reference designations NB6051-59L and NB6051. It surfaces regularly enough in Japanese listings to warrant active tracking, though US comparable sales remain limited, which shapes how confidently any price estimate can be stated. The current US median sits at $749, with a spread that runs meaningfully higher depending on condition and source. This page tracks live JDM activity and price signals for anyone researching NB6051-59L price or looking at buy NB6051-59L Japan opportunities.

Current US Market Value

Based on available US transaction data, the Citizen Series 8 831 Ice Blue NB6051-59L carries a current median of $749, with the interquartile range spanning $700 to $1,095. That upper bound is a wide gap from the median, which typically signals condition-driven variance rather than a stable two-tier market. The comp quality for this reference is rated 🟡 Limited comps, meaning the sample size is small enough that the median should be treated as a directional anchor, not a firm appraisal. As more NB6051-59L for sale transactions are recorded, that range will tighten. For now, buyers and resellers should weight recent Japanese listing activity heavily when forming a view on fair value.

Active JDM Listings

Japanese marketplace activity for the NB6051-59L has been concentrated in a single active window. Multiple listings appeared on May 30, spanning Mercari Japan, Yahoo Auctions, and Yahoo Shop storefronts, with asking prices ranging from roughly ¥104,280 to ¥159,000. The spread across platforms in a single day reflects the usual mix of private sellers and shop inventory moving at different expectations.

• ¥159,000 on Mercari Japan (condition unlisted)
• ¥132,000 on Yahoo Auctions Japan, two separate used listings
• ¥132,000 on Yahoo Shop (condition unlisted)
• ¥104,280 on Yahoo Auctions Japan, listed as excellent condition
• ¥104,280 on Yahoo Shop, also listed as excellent condition

The excellent-condition units at ¥104,280 are the most actionable data points for anyone running arbitrage math, as they represent the cleanest available inventory at the lower end of the Japanese asking range.

Recent Alert History

Within the past 90 days, one alert has fired for this reference. On May 25, the NB6051-59L triggered an activity tier alert after a unit landed at $774 against a US median of $749, producing a gross margin of approximately negative three percent before fees and shipping are factored in. An activity tier signal indicates the model is being traded, but it does not represent an arbitrage opportunity at current price levels. No strict buy or opportunity-tier alerts have fired in the tracked window, which is consistent with the thin margin picture the current Japan-to-US spread suggests.

Japan vs. US Price Gap

At ¥104,280 for an excellent-condition unit, the landed cost after shipping, proxy fees, and import considerations will typically approach or exceed the $749 US median, which is exactly what the May 25 alert confirmed when a unit landed at $774 and yielded negative gross margin. The upper end of the US range, extending to $1,095, exists, but reaching it likely requires near-mint or new-old-stock condition with correct box and papers, which is not guaranteed from private Japanese listings. The primary risk here is the combination of thin comps and condition variance. A used unit at ¥132,000 landed will need to clear well above median to produce a positive outcome, and with limited US sales data to benchmark against, grading that probability is genuinely difficult. Buyers sourcing through Tonbo's live deals feed can filter for listings where the margin math has already been checked.

Get Real-Time Alerts for Citizen Series 8 831 Ice Blue NB6051-59L

Tonbo monitors Japanese marketplaces continuously and fires price alerts when the NB6051-59L or other tracked references cross defined thresholds. If you want to be notified the next time an excellent-condition NB6051-59L for sale appears in Japan at a spread that makes sense, you can set up alert preferences at tonbomarket.com/pricing. A free newsletter covering JDM market movements is also available at tonbomarket.com. For a broader view of which Citizen and other JDM references are currently triggering opportunity signals, the Tonbo signals dashboard is the fastest way to stay current without monitoring Japanese listings manually.