Seiko Cal. 5643 - 898

Released in 1988, the Cal. 5643 with design code 898 was part of Seiko's domestic market collection. With its 21mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-dfdb7ca2cec8]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1988

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