Seiko Cal. 3863 - 820

The Seiko 3863-820 represents an important milestone in Seiko's 1986 lineup. With its 19mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-f0a14edaf753]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

17j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1986

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