Seiko Cal. 5630 - 633

The Seiko 5630-633 represents an important milestone in Seiko's 1976 lineup. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-ce4bb90426b8]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1976

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