Tudor Black Bay 54 M79000 Lagoon Blue (M79000, 79000, 79000N). Current Prices, JDM Listings, Market Analysis
The Tudor Black Bay 54 M79000 Lagoon Blue is a distinctive variant of Tudor's diver-inspired Black Bay 54 line, distinguished by its soft blue dial colorway that has attracted steady collector attention since its introduction. Tonbo tracks this reference across Japanese domestic market platforms and US secondary sales because JDM supply occasionally surfaces at pricing that creates real arbitrage potential for buyers willing to navigate the import process. At a current US median of $4,200, it sits in a price band where condition and sourcing channel matter significantly. The comp pool is thin enough that buyers should approach any single listing with appropriate skepticism, but the data available provides a useful baseline.
Current US Market Value
The Tudor Black Bay 54 M79000 Lagoon Blue M79000 price in the US currently sits at a median of $4,200, with the interquartile range running from $3,700 to $4,900. That $1,200 spread between the 25th and 75th percentile is meaningful and reflects real variation in condition grades and box-and-papers status across recent transactions. It is worth noting directly that this estimate is built on a sample size of 10 sales, which Tonbo flags with an orange-tier comp quality rating. That rating means the figure is directionally useful but should not be treated as a tight market consensus. As more sales accumulate, confidence in the median will improve. For now, the $3,700 to $4,900 range is the more honest way to frame M79000 price expectations.
Active JDM Listings
Japanese market activity for the Tudor Black Bay 54 M79000 Lagoon Blue has been light but present. One listing surfaced in the past two weeks, and the pricing context is worth examining for anyone looking to buy M79000 Japan as a sourcing channel.
- Jun 15 on Komehyo: ¥900,000 listed in close-to-unused condition
- Platform is Komehyo, one of Japan's more established watch resellers with graded condition assessments
- "Close to unused" is a meaningful condition descriptor in JDM grading and typically indicates minimal wear with original accessories present
- At current exchange rates, ¥900,000 translates to roughly $6,000 USD at the listing price, which is above the US interquartile range
- That pricing gap suggests this particular listing is not an obvious arbitrage opportunity without factoring in import costs, agent fees, and condition verification
Recent Alert History
No strict or opportunity-tier alerts have fired for the Tudor Black Bay 54 M79000 Lagoon Blue in the past 90 days. Tonbo's alert engine monitors for listings that fall meaningfully below comp value or surface in high-confidence condition grades at discount. The absence of alerts over this window reflects the limited listing volume rather than a negative signal about the model itself. Buyers tracking this reference through Tonbo's signals dashboard will be notified if a qualifying listing appears. With a thin comp pool and infrequent JDM supply, patience is the appropriate posture here.
Japan vs. US Price Gap
The Tudor Black Bay 54 M79000 Lagoon Blue does not currently show a clear JDM discount relative to US market pricing. The single active Komehyo listing at ¥900,000 sits above the US median once import logistics are priced in, which is consistent with what happens on lower-volume references where JDM sellers are also watching global comps. Buyers researching M79000 for sale in Japan should model a realistic landed cost that includes deputy service or forwarding agent fees, domestic shipping, and any applicable import duties before assuming the arbitrage math works. The primary risk factor here is comp thinness: with only 10 US sales in the dataset, a single outlier transaction has an outsized effect on the median, making it harder to know with confidence whether a given JDM listing represents genuine value.
For a broader look at where JDM pricing gaps are currently strongest across Tudor and other brands, the Tonbo deals feed surfaces those opportunities as they develop.
Track Tudor Black Bay 54 M79000 Lagoon Blue on Tonbo
Tonbo is free to start at tonbomarket.com/dashboard. The Collector tier gives you a five-model watchlist, live JDM listing feeds, and access to comp data, with no credit card required. If you want real-time Discord alerts when a listing crosses a price or condition threshold you set, the Member tier is $10 per month. For a reference like the M79000 Lagoon Blue where supply is sporadic and the alert history is quiet, having automated monitoring running in the background is the practical way to stay positioned without checking platforms manually. Add it to your watchlist, set your target, and let the data do the work.