Seiko Cal. 5631 - 519

The Seiko 5631-519 represents an important milestone in Seiko's 1984 lineup. With its 21mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-646a80a2aa99]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1984

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