Seiko Cal. 5615 - 379

This Spring Drive model from 1983 features a 40mm Two-Tone case. With its 18mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-043999a6be7d]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1983

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