Seiko Cal. 5640 - 120

This Spring Drive model from 1984 features a 44mm Titanium case. With its 18mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-6940716c6e0f]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

27j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1984

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