Seiko Cal. 5634 - 742

The Seiko 5634-742 represents an important milestone in Seiko's 1999 lineup. With its 21mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-8ece471da374]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1999

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