Seiko Cal. 0742 - 557

The Seiko 0742-557 represents an important milestone in Seiko's 1978 lineup. With its 21mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-2cd0c5a3e9ac]

Also known as: UFO, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1978

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