Seiko Cal. 5643 - 954

This Automatic model from 1988 features a 41mm Two-Tone case. With its 21mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-72ca13ed7d15]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1988

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