Seiko Cal. 3878 - 277

This Spring Drive model from 1976 features a 38mm Titanium case. It features a Black dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-dab5017f5591]

Also known as: Shogun, Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1976

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