Seiko 3863-7020 Full Set with Razor Sharp Case Edges

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Lovely. Bless 70s Seikos with faceted crystals.

What's the significance of the "QR" branding?
 
Posts
1,191
Likes
6,189
Lovely. Bless 70s Seikos with faceted crystals.

What's the significance of the "QR" branding?
Japanese Domestic Market "Regular Quartz" Early 39 series movement. Standard grade below Grand, Superior or King Quartz.