Seiko Cal. 6343 - 673

This Spring Drive model from 1978 features a 38mm PVD Black case. With its 18mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-78bdf491e4b1]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1978

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