Seiko Cal. 6642 - 887

The Seiko 6642-887 represents an important milestone in Seiko's 1966 lineup. It features a Black dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-1816b0537262]

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1966

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