Seiko Cal. 6371 - 831

The 6371-831 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6371 caliber with 21j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-d6452aff3ab9]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1980

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