Seiko Bullhead Chronograph 6138-0040 (1972-1977) (6138-0040, Bullhead). Current Prices, JDM Listings, Market Analysis

The Seiko Bullhead Chronograph 6138-0040 is one of the most visually distinctive chronographs Seiko produced in the 1970s, named for its crown-at-12 layout that gives the case its characteristic horned silhouette. It sits at a crossroads of genuine collector interest and accessible JDM pricing, which is exactly why it shows up consistently on sourcing watchlists. The US market for the Seiko Bullhead Chronograph 6138-0040 (1972-1977) 6138-0040 has firmed up meaningfully over the past few years, with median prices now sitting in four-figure territory. Tonbo tracks this reference because the gap between Japanese street prices and US retail demand creates periodic windows worth monitoring.

Current US Market Value

The current US median price for the 6138-0040 is $1,200, with the middle half of verified sales falling between $800 and $1,700. That spread is wide, which reflects real condition variance in the market rather than pricing ambiguity. It is worth being direct about the data foundation here. This analysis draws on a sample of five operator-verified transactions, and the comp quality is rated 🟡 Limited. That does not mean the figures are unreliable, but it does mean a single outlier sale can move the median, and buyers should treat these numbers as a directional guide rather than a tight consensus. As more sales are logged, confidence in the range will tighten. For the most current 6138-0040 price data as it develops, the Tonbo pricing page reflects updates in real time.

Active JDM Listings

Japan currently has active supply on Yahoo Flea, with three listings appearing on the same day in late May. All three carry condition notes ranging from damaged to dirty, which is a pattern worth paying attention to. This is not unusual for a 50-year-old chronograph with functional complexity, but it does mean that clean examples are not the norm in current JDM circulation. Anyone looking to buy 6138-0040 Japan should be prepared to sort through condition-compromised inventory to find pieces worth importing.

• ¥120,000 on Yahoo Flea (May 30) , described as a little damaged and dirty
• ¥98,000 on Yahoo Flea (May 30) , described as damaged and dirty
• ¥51,000 on Yahoo Flea (May 30) , described as damaged and dirty

The ¥51,000 listing is notable at the low end, though the condition description suggests it may need significant work before it would be presentable to a US buyer. The ¥120,000 listing, converted at current rates, closes in on the US floor of $800, leaving limited room once shipping, import costs, and any service fees are factored in.

Recent Alert History

No strict or opportunity alerts have fired for the 6138-0040 in the past 90 days. That means no listings have cleared Tonbo's threshold filters for either a clean deal at strong value or an underpriced outlier worth acting on quickly. The current JDM supply, which skews toward condition-compromised pieces, is likely a contributing factor. Alerts tend to fire when condition and price align favorably. Monitoring Tonbo's signals feed for this reference remains worthwhile given how quickly a clean example can appear and disappear in the Japanese secondary market.

Japan vs. US Price Gap

The US-Japan price gap on the 6138-0040 for sale exists partly because Western collector demand for bold 1970s Japanese chronographs has grown faster than Japanese domestic pricing has adjusted. Pieces that sold quietly in Japan for years are now recognized internationally, but the domestic market still prices based on local appetite. The main risk factor here is condition variance compounded by thin comps. With only five verified US sales in the dataset, a single high-grade example sold at a premium can distort the apparent median, and a buyer who pays $1,200 expecting average US resale may find the actual achievable price shifts depending on what else is available at that moment. Factoring in service costs for a vintage automatic chronograph is non-negotiable when running the numbers. You can review current sourcing opportunities across similar references at the Tonbo deals tracker.

Get Real-Time Alerts for Seiko Bullhead Chronograph 6138-0040 (1972-1977)

If you are waiting for the right 6138-0040 to surface at the right price, passive monitoring is the most efficient approach. Tonbo's alert system watches Japanese platforms continuously and flags listings against verified US comp data when the numbers make sense. You can set up tracking for the Seiko Bullhead Chronograph 6138-0040 (1972-1977) 6138-0040 at tonbomarket.com/pricing. For broader JDM market coverage without a paid subscription, the free newsletter at tonbomarket.com publishes sourcing notes and market updates on a regular cadence.