Seiko Cal. 3831 - 258

The Seiko 3831-258 represents an important milestone in Seiko's 1974 lineup. It features a Black dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-9cdf27235c09]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1974

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