Seiko Cal. 6639 - 301

The Seiko 6639-301 represents an important milestone in Seiko's 1987 lineup. It features a Green dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-c43179aa8343]

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1987

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