Hi-Beat 56GS

1. 
   Grand Seiko Grand Seiko 5646-7030 “Diamond Dust” dial $1,400

   Reddit 1 month ago
2. 
   Grand Seiko 1973 Grand Seiko 5646-7030 Snowflake dial, pencil hand… $1,500

   Reddit 1 month ago
3. 
   Grand Seiko Grand Seiko Hi-Beat Day-Date ref. 5646-7011 ~1972 — Tr… $950

   Reddit 2 months ago
4. 
   Grand Seiko Vintage Grand Seiko 56GS Case 36.5mm - 5645-7010 (1971… $985

   WatchUSeek 4 months ago
5. 
   Grand Seiko Grand Seiko 5646-7020 Hi-Beat - Automatic - 35mm - $12… $1,200

   Reddit 4 months ago

Other Grand Seiko Models

1. #1
   Grand Seiko SBGA413 40mm

   $5,688 $5,050 – $6,000

   165 listings 19 hours ago
2. #2
   Grand Seiko Snowflake 41mm

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3. #3
   Grand Seiko SBGM221 39.5mm

   $3,717 $3,412 – $3,950

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4. #4
   Grand Seiko SBGX261 37mm

   $1,600 $1,475 – $1,850

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5. #5
   Grand Seiko SBGA407 40mm

   $3,700 $3,350 – $4,100

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6. #6
   Grand Seiko SBGA415 40mm

   $4,774 $4,431 – $5,260

   58 listings 21 hours ago
7. #7
   Grand Seiko SBGW231 37.3mm

   $2,500 $2,350 – $2,900

   55 listings 4 days ago
8. #8
   Grand Seiko Spring Drive 41mm

   $2,995 $2,550 – $3,495

   50 listings 3 days ago
9. #9
   Grand Seiko Hi-Beat 61GS

   $1,200 $1,042 – $1,347

   48 listings 2 weeks ago
10. #10
    Grand Seiko SLGA009

    $6,250 $5,625 – $6,837

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