Seiko Cal. 3831 - 438

The Seiko 3831-438 represents an important milestone in Seiko's 1984 lineup. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-1a16cc8ecb0f]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1984

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