Vintage Seiko Sportsmatic Calendar 820 Automatic Watch New Old Stock 15040D

Vintage Seiko Sportsmatic Calendar 820 Automatic Watch - New Old Stock. This watch is from my personal collection I acquired through living in Japan.

It was overhauled in August 2019 and at that time running within 20sec/day when placed flat, but mileage may vary. I have not used this watch since purchasing, but letting this one go.

While NOS, watch has some dial aging and hairlines on top of lugs. Watch is on original leather band with caseback sticker.

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