Seiko Cal. 3879 - 789

This Spring Drive model from 1968 features a 42mm Two-Tone case. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-e0dbe9f90412]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1968

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