Seiko Cal. 3878 - 117

The Seiko 3878-117 represents an important milestone in Seiko's 1979 lineup. With its 18mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-a41f2d9e0983]

Also known as: Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1979

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