Seiko Cal. 3878 - 394

The Seiko 3878-394 represents an important milestone in Seiko's 1979 lineup. With its 20mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-fb493ce91d8f]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1979

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