Seiko Cal. 5631 - 872

This Solar model from 1978 features a 46mm PVD Black case. Powered by the 5631 caliber with 34j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-1c8b49c2d947]

Also known as: Shogun, UFO

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1978

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