SBSC003, SSK003 · US median $340
The Seiko 5 Sports GMT Blueberry SBSC003/SSK003 (SBSC003, SSK003) is a Seiko-made JDM reference tracked by Tonbo on Yahoo Auctions Japan and Mercari Japan. Tonbo monitors this reference in real time and surfaces listings that meet its margin criteria to paid subscribers via Discord.
The following Seiko 5 Sports GMT Blueberry SBSC003/SSK003 listings were recently active on Japanese marketplaces. Listing URLs are available to paid subscribers.
Tonbo has fired the following alerts for Seiko 5 Sports GMT Blueberry SBSC003/SSK003 in the past 90 days.
Verified sold comp data for the Seiko 5 Sports GMT Blueberry SBSC003/SSK003 is not yet established in the Tonbo database. This typically means the model trades infrequently on eBay or the reference numbers require manual verification. Check recent alerts and current deals for context on active pricing.
Tonbo subscribers receive real-time Discord alerts when Seiko 5 Sports GMT Blueberry SBSC003/SSK003 listings appear on Yahoo Auctions Japan, Mercari Japan, and other Japanese platforms. Add this reference to your watchlist and set your margin threshold. Sign up free at tonbomarket.com/dashboard. Free Collector accounts include a 5-model watchlist and daily email digest, no card required.
Based on 121 verified US eBay sold comps and 4 recent alerts in the past 90 days, the Seiko 5 Sports GMT Blueberry SBSC003/SSK003 shows consistent signal below US market price, with recent alerts in the strict tier. Condition variance is the primary risk: verify the listing grade before bidding.
The current US secondary market median for the Seiko 5 Sports GMT Blueberry SBSC003/SSK003 is $340. The middle 50% of sold comps fall between $299 and $399, based on 121 eBay sold listings.
Active Seiko 5 Sports GMT Blueberry SBSC003/SSK003 listings are currently appearing on Yahoo Shopping Japan. Most international buyers use a proxy service such as Buyee, which bids on your behalf, handles payment, and forwards shipment to your country. Tonbo does not sell watches and has no affiliate relationship with Buyee.
With 121 US sold comps, there is solid evidence of an active secondary market for the Seiko 5 Sports GMT Blueberry SBSC003/SSK003. Plan for 2-6 weeks on the US market for a well-priced example, though condition and current supply affect sell time significantly.
Track Seiko 5 Sports GMT Blueberry SBSC003/SSK003 on your watchlist. Get an alert when it appears below US market on Yahoo Auctions Japan or Mercari Japan. Free to start.
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