Seiko Cal. 6639 - 865

This Quartz model from 1971 features a 44mm PVD Black case. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-7a85502b11ab]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1971

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