Seiko Cal. 3870 - 747

The Seiko 3870-747 represents an important milestone in Seiko's 1976 lineup. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-ef8cfa229180]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

36j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1976

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