Seiko Cal. 5640 - 868

This Spring Drive model from 1976 features a 39mm PVD Black case. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-7c9995dc9864]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1976

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