Seiko Cal. 3860 - 631

The Seiko 3860-631 represents an important milestone in Seiko's 1997 lineup. With its 22mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-50cb72371b48]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1997

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