Seiko Cal. 3831 - 378

The Seiko 3831-378 represents an important milestone in Seiko's 1978 lineup. It features a Navy dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-1cb14d56bf1a]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

35j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1978

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