Seiko Cal. 5640 - 673

The Seiko 5640-673 represents an important milestone in Seiko's 1981 lineup. With its 19mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-a0e2007200ff]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1981

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