Seiko Cal. 3864 - 628

The Seiko 3864-628 represents an important milestone in Seiko's 1982 lineup. Powered by the 3864 caliber with 34j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-aa3707bcfedb]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1982

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