Seiko Cal. 3831 - 285

The Seiko 3831-285 represents an important milestone in Seiko's 1970 lineup. It features a Green dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-9d02deba0c55]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1970

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