Seiko Cal. 6639 - 844

This Quartz model from 1980 features a 46mm PVD Black case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-9101cb5465ac]

Also known as: Tuna, Pogue

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1980

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