Seiko Cal. 5642 - 166

The Seiko 5642-166 represents an important milestone in Seiko's 1988 lineup. Powered by the 5642 caliber with 20j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-ecf4419139df]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1988

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