Seiko Cal. 3878 - 770

This Spring Drive model from 1981 features a 39mm Stainless Steel case. It features a Cream dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-fd23e6dc437a]

Also known as: Samurai, Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1981

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