Seiko Cal. 5639 - 155

This Spring Drive model from 1969 features a 40mm PVD Black case. With its 21mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-eb3ab2f4ed3f]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1969

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