Tudor Black Bay 58 Blue (2020-) (M79030B, M79030B-0001, BB58 Blue). Current Prices, JDM Listings, Market Analysis

The Tudor Black Bay 58 Blue is one of the more consistently traded references in the modern Tudor lineup, tracked here under reference numbers M79030B and M79030B-0001. Its compact proportions and blue dial have made it a reliable performer in both the primary and secondary markets since its introduction. Tonbo tracks this model because it surfaces regularly across Japanese resale platforms at prices that create exploitable gaps against US retail comps. As of this writing, the US median sits at $3,133, with a reasonably tight interquartile range suggesting stable demand.

Current US Market Value

The current US median for the Tudor Black Bay 58 Blue M79030B is $3,133, derived from 31 verified eBay sales. The interquartile range runs from $2,964 at the 25th percentile to $3,530 at the 75th percentile, a spread of roughly $566 that indicates moderate price dispersion without significant outlier distortion. A sample size of 31 is adequate for directional confidence, though not deep enough to call this a high-liquidity reference by major brand standards. Comp quality is rated 🟢 Verified, meaning these are confirmed sold transactions rather than asking prices or estimates. For anyone researching M79030B price levels before making a buying or sourcing decision, this range reflects actual market clearing prices on the dominant US secondary platform.

Active JDM Listings

Japanese market activity for the BB58 Blue has been steady over the past two weeks, with multiple platforms showing inventory in the ¥450,000 to ¥541,200 range. The price clustering at ¥541,200 across three separate platforms in a short window suggests that figure reflects a current consensus ask in the Japanese secondary market rather than an outlier. The lower ¥450,000 listing on Komehyo, described as having no noticeable scratches or stains, is the more actionable data point for buyers seeking clean examples.

• May 25, ¥450,000 on Komehyo. Condition noted as no noticeable scratches or stains.
• May 21, ¥541,200 on a Japanese platform. Condition unknown.
• May 20, ¥541,200 on Mercari Japan. Condition unknown.
• May 19, ¥541,200 on Yahoo Shop Japan. Condition unknown.

Listings without condition disclosure require additional diligence. When you buy M79030B from Japan, box and papers status, crown condition, and case finishing should all be confirmed before committing, particularly on platforms where seller communication is limited.

Recent Alert History

Within the past 90 days, one alert has fired for this reference. On May 18, an activity tier alert recorded a landed cost of $3,912 against a US median of $3,400 at the time, producing a gross margin of negative 15 percent. That outcome reflects a deal that did not clear profitably at those specific conditions, which is a useful calibration point. Activity tier alerts signal that deal flow exists for this reference, but they do not guarantee margin. Strict or opportunity tier alerts, which represent cleaner setups, have not fired recently for the M79030B. Subscribers watching this model through Tonbo's signals feed would have received that activity flag in real time.

Japan vs. US Price Gap

The US-Japan price gap on the Tudor Black Bay 58 Blue is real but variable. At ¥450,000, the Komehyo listing converts to roughly $3,000 at current exchange rates before shipping, import duties, and any intermediary fees, which compresses margins against a US median of $3,133 considerably. The ¥541,200 cluster prices sit closer to or above the US median once landed costs are factored in, meaning only the lower end of Japanese supply generates a workable spread.

The primary risk factor here is condition variance with incomplete disclosure. Three of the four recent listings carry unknown condition status, and grading inconsistencies across Japanese platforms mean that a watch listed at ¥450,000 in clean condition and one listed at ¥541,200 with unknown condition may not represent equivalent value. Buyers sourcing M79030B for sale in the US market should weight condition and paper documentation heavily, as these factors directly affect where within the $2,964 to $3,530 band a given piece will clear. More current opportunities are indexed on the Tonbo deals page.

Get Real-Time Alerts for Tudor Black Bay 58 Blue (2020-)

Tonbo monitors Japanese listings for the M79030B and similar references continuously, firing alerts when landed cost estimates create a meaningful margin against verified US comps. If you want to be notified the next time a clean BB58 Blue surfaces at a price that works, alert tiers and pricing details are at tonbomarket.com/pricing. A free newsletter covering JDM market movements, including references like this one, is available at tonbomarket.com.