Seiko Cal. 3818 - 397

Released in 1982, the Cal. 3818 with design code 397 was part of Seiko's domestic market collection. It features a White dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-502ba2da0f42]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1982

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