Seiko Cal. 5634 - 146

The Seiko 5634-146 represents an important milestone in Seiko's 1980 lineup. With its 20mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-6f5f1a7db3fa]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1980

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