Seiko Cal. 3863 - 635

The Seiko 3863-635 represents an important milestone in Seiko's 1975 lineup. With its 22mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-cab905d2247e]

Also known as: Sea Horse, Crown

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

26j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1975

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