Seiko Cal. 3878 - 348

The Seiko 3878-348 represents an important milestone in Seiko's 1968 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-a609bd7fab76]

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1968

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