Seiko Cal. 3817 - 140

The Seiko 3817-140 represents an important milestone in Seiko's 1983 lineup. It features a Navy dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-a37241a360c4]

Also known as: Sea Horse, Emperor

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1983

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