Japan Market

Recently spotted in Japan.

JDM watches currently listed at or below US market price. Pulled from Yahoo Auctions Japan, Mercari Japan, Yahoo Shopping Japan, and Yahoo Flea Market. Japan prices shown before fees and shipping. Listing URLs unlock with a free account.

12 watches spotted · July 28, 2026 at 00:01 UTC
Seiko Astron Origin GPS Solar 3X22 Titanium 39mm SBXD009/SSJ00932% below US
Mercari Japan 2h ago
Seiko Astron Origin GPS Solar 3X22 Titanium 39mm SBXD009/SSJ009
Seiko
~$812 USD
US range: $1,072 – $1,344
no noticeable scratches or stains
🔒 Listing URL Sign in or start free →
Seiko Lord Marvel 5740-8000 (1967-1973)22% below US
Mercari Japan 8h ago
Seiko Lord Marvel 5740-8000 (1967-1973)
Seiko
~$273 USD
US range: $250 – $500
no noticeable scratches or stains
🔒 Listing URL Sign in or start free →
Casio G-Shock Solar Bluetooth GW-B560038% below US
Yahoo Auctions Japan Auction 9h ago
Casio G-Shock Solar Bluetooth GW-B5600
Casio
~$123 USD
US range: $150 – $280
🔒 Listing URL Sign in or start free →
Casio G-Shock CasiOak Solar Bluetooth GA-B210035% below US
Yahoo Auctions Japan Auction 9h ago
Casio G-Shock CasiOak Solar Bluetooth GA-B2100
Casio
~$97 USD
US range: $120 – $200
🔒 Listing URL Sign in or start free →
Casio G-Shock MT-G MTG-B200045% below US
Mercari Japan 10h ago
Casio G-Shock MT-G MTG-B2000
Casio
~$453 USD
US range: $683 – $1,028
no noticeable scratches or stains
🔒 Listing URL Sign in or start free →
Casio G-Shock Full Metal Gold GMW-B5000GD24% below US
Mercari Japan 11h ago
Casio G-Shock Full Metal Gold GMW-B5000GD
Casio
~$367 USD
US range: $400 – $600
no noticeable scratches or stains
🔒 Listing URL Sign in or start free →
Casio G-Shock Mudmaster GWG-200049% below US
Yahoo Auctions Japan Auction 11h ago
Casio G-Shock Mudmaster GWG-2000
Casio
~$292 USD
US range: $500 – $698
🔒 Listing URL Sign in or start free →
Casio G-Shock Frogman Analog GWF-A100041% below US
Mercari Japan 12h ago
Casio G-Shock Frogman Analog GWF-A1000
Casio
~$440 USD
US range: $530 – $1,060
no noticeable scratches or stains
🔒 Listing URL Sign in or start free →
Casio G-Shock Solar Bluetooth GW-B560042% below US
Mercari Japan 12h ago
Casio G-Shock Solar Bluetooth GW-B5600
Casio
~$116 USD
US range: $150 – $280
no noticeable scratches or stains
🔒 Listing URL Sign in or start free →
Seiko Prospex Alpinist Green SBDC21113% below US
Mercari Japan 12h ago
Seiko Prospex Alpinist Green SBDC211
Seiko
~$747 USD
US range: $810 – $928
no noticeable scratches or stains
🔒 Listing URL Sign in or start free →
Grand Seiko Heritage 9F62 Quartz SBGX26313% below US
Mercari Japan 12h ago
Grand Seiko Heritage 9F62 Quartz SBGX263
Grand Seiko
~$1,656 USD
US range: $1,700 – $2,172
no noticeable scratches or stains
🔒 Listing URL Sign in or start free →
Casio Oceanus Manta S5000 Series OCW-S500050% below US
Yahoo Auctions Japan Auction 12h ago
Casio Oceanus Manta S5000 Series OCW-S5000
Casio
~$485 USD
US range: $850 – $1,100
🔒 Listing URL Sign in or start free →

Japan prices converted at ~¥154/$ for comparison only. Actual USD cost depends on your proxy service fees, shipping, and current FX rate.

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How the filtering works

Tonbo monitors Yahoo Auctions Japan, Mercari Japan, Yahoo Shopping Japan, and Yahoo Flea Market. Each listing is matched against a US comp database built from eBay sold listings for the same reference. Aftermarket parts, head-only listings, damaged condition, and anomalously low-priced listings are filtered before any listing appears here. Only fixed-price buyouts are included — auction listings with unresolved bids are excluded. This page shows listings where the Japan price is at or below 115% of US median at current FX rates.

Full methodology →