Seiko Cal. 3878 - 109

The Seiko 3878-109 represents an important milestone in Seiko's 1970 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-0381ce714b72]

Also known as: Samurai, Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1970

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