Seiko Cal. 6639 - 517

The Seiko 6639-517 represents an important milestone in Seiko's 1981 lineup. It features a Green dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-143fc121b63a]

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1981

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