Seiko Cal. 5631 - 212

The Seiko 5631-212 represents an important milestone in Seiko's 1972 lineup. Powered by the 5631 caliber with 32j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-ec33fd3dcd52]

Also known as: Silverwave, Arnie

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Cream

Jewels

32j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1972

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