Seiko Cal. 5631 - 971

The Seiko 5631-971 represents an important milestone in Seiko's 1974 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-fd4632bad04e]

Also known as: Panda

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1974

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