Seiko Cal. 5631 - 372

The Seiko 5631-372 represents an important milestone in Seiko's 1985 lineup. Powered by the 5631 caliber with 34j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-04e5bb357b2a]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1985

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