Seiko Cal. 6642 - 891

The Seiko 6642-891 represents an important milestone in Seiko's 1986 lineup. Powered by the 6642 caliber with 20j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-4be0faa3673d]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1986

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