Seiko Cal. 3870 - 934

The Seiko 3870-934 represents an important milestone in Seiko's 1978 lineup. It features a Cream dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-19876f513a0a]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1978

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