Seiko Cal. 5639 - 271

This Automatic model from 1990 features a 45mm Two-Tone case. With its 20mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-fc2eb2f3b63b]

Also known as: Monster, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1990

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