[wts] 1965's Vintage Seiko Sportsmatic Calender 820 SEIKOSHA Vintage Japan Men's Watch price $330

1965's Vintage Seiko Sportsmatic Calender 820 SEIKOSHA Vintage Japan Men's Watch price $330

A 1965 vintage Seiko Sportsmatic calendar watch with a 17 jewels movement and Diashock dial, featuring a waterproof case but untested for its capabilities. The watch has a lug-to-lug diameter of approximately 38mm and comes on an aftermarket black strap.

  • Condition: Very good, working fine
  • Movement Type: Japanese
  • Jewels: 17
  • Water Resistance: untested
Posted at
Aug 30, 2025, 4:00 PM
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