Seiko Cal. 5639 - 491

This Automatic model from 1980 features a 40mm PVD Black case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-0fd067154849]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1980

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