Seiko 6105-8110 Captain Willard Cushion Diver (6105-8110, 6105-8119, Captain Willard, Apocalypse Now Seiko, Cushion Willard). Current Prices, JDM Listings, Market Analysis

The Seiko 6105-8110 Captain Willard Cushion Diver is one of the most culturally loaded vintage dive watches produced during the early 1970s. Built between 1970 and 1977, the reference appears across both the 6105-8110 and 6105-8119 variants, distinguished primarily by dial and bezel details. It sits at a demanding intersection of vintage Seiko collecting and pop-culture demand, which keeps pricing volatile and condition standards unforgiving. Tonbo tracks this model because the gap between a worn original and a parts-swapped example can be measured in thousands of dollars, making sourcing discipline essential.

Current US Market Value

The current US median price for the Seiko 6105-8110 Captain Willard Cushion Diver sits at approximately $2,300, with the middle 50 percent of transactions falling between $1,500 and $3,700. That is a wide band, and it reflects real condition variance in the market rather than statistical noise. It is worth stating plainly that this estimate is based on a sample size of five operator-verified transactions, which means the comp quality rating is 🟠 Estimate only. The 6105-8110 price data here should be treated as directional guidance rather than a precise floor or ceiling. A thin sample set is a genuine limitation, and anyone making a purchase decision at the higher end of the range should weight condition and originality heavily before committing.

Active JDM Listings

Current Japanese market activity for the Captain Willard shows a cluster of listings concentrated around the ¥230,000 to ¥320,000 range, with one notable outlier at ¥16,000 on Mercari that carries an unknown condition grade and warrants significant skepticism. The spread between that low and the upper listings is too large to attribute to normal wear variation alone, suggesting that parts quality, dial condition, or completeness are likely factors. For anyone looking to buy 6105-8110 from Japan, the current window shows genuine availability across both Mercari and Japanese auction platforms.

• ¥250,000 on Mercari, graded good condition (May 24)
• ¥229,800 on Mercari, graded excellent condition (May 24)
• ¥318,000 on Mercari, graded good condition (May 24)
• ¥308,000 on Japanese auction platform, condition unknown (May 24)
• ¥290,000 on Japanese auction platform, graded excellent condition (May 24)

The ¥16,000 Mercari listing has been excluded from the representative sample above. At that price point relative to the rest of the market, it almost certainly represents a heavily worn, incomplete, or non-original example.

Recent Alert History

No strict buy alerts or opportunity-tier signals have fired for the Seiko 6105-8110 Captain Willard Cushion Diver in the past 90 days. This does not mean the model is overpriced across the board, but it does indicate that no Japanese listings have cleared our pricing thresholds relative to verified US comps during that window. Given the small US comp sample size, the alert model is appropriately conservative here. Users monitoring this reference through Tonbo's signals feed will receive notification when a qualifying listing does emerge.

Japan vs. US Price Gap

At current exchange rates, the mid-range JDM listings at roughly ¥250,000 to ¥290,000 land close to or at the US median after import costs, shipping, and any service work, which limits obvious arbitrage opportunity on average examples. The cleaner play exists at the excellent-condition end of the Japanese market, where a well-documented, fully original piece can still come in below the US top quartile once landed. The primary risk factor for this reference is parts originality. Common service replacements, specifically the hands and crown, are documented to cut resale value by 30 to 50 percent in the US market, and Japanese listing photos do not always give sufficient detail to verify these components before purchase. Browse current value opportunities across tracked JDM models on the Tonbo deals page to compare this reference against others in the same tier.

Get Real-Time Alerts for Seiko 6105-8110 Captain Willard Cushion Diver

Tonbo monitors JDM platforms daily and surfaces 6105-8110 for sale listings that meet defined condition and price thresholds. Paid subscribers get immediate alerts when a qualifying Captain Willard appears, along with condition notes and direct access to listing details. You can review alert tiers and subscription options at tonbomarket.com/pricing. If you want to get a feel for the data before subscribing, the free newsletter at tonbomarket.com covers notable JDM market activity on a regular cadence.