Seiko Cal. 5630 - 831

The Seiko 5630-831 represents an important milestone in Seiko's 1984 lineup. With its 20mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-813c038e5d4c]

Also known as: Samurai

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1984

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