Seiko Cal. 5631 - 885

The Seiko 5631-885 represents an important milestone in Seiko's 1981 lineup. Powered by the 5631 caliber with 20j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-ca18afdc8730]

Also known as: Samurai, Shogun

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1981

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