Seiko Cal. 3831 - 564

The Seiko 3831-564 represents an important milestone in Seiko's 1978 lineup. It features a Champagne dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-c7b2f3fee7de]

Also known as: Samurai, Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1978

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