Seiko Cal. 5642 - 157

The Seiko 5642-157 represents an important milestone in Seiko's 1987 lineup. Powered by the 5642 caliber with 21j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-a3abc088873a]

Also known as: Tuna, Emperor

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1987

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